Not yet built. Every price, cost and fee on this page is a design-stage estimate. Nothing here is for sale yet.
Everything our engineering, sourcing, and compliance work produced for this product. Nothing here is marketing. It's the actual document we'd hand a contract manufacturer.
Product family: WanderBand, the WanderVerse wrist-worn wearable Device IDs: WV-WEAR-BAND-LITE · WV-WEAR-BAND-STD · WV-WEAR-BAND-PRO · WV-WEAR-BAND-ULTRA Chassis: new, Wrist-Small (38-42mm) + Wrist-Large (46-48mm) + Wrist-Rugged (50-52mm titanium) Status: spec v2.1, post-validation (Perplexity tech + local-LLM clinical + sensor-tech audit + dual-mode principle applied), SOP v2 native, platform + modules, identity-aware Supersedes: WANDERBAND-BUILD-SPEC.md v1.0 (April 2026). This version adds 4-tier architecture, modular sensor-puck, trans-affirming clinical biometrics, identity-aware safety features, sensor roadmap through 2029, dual-SoC architecture, standalone + industry-integration modes Ship target: Lite + Standard Q3 2027 · Pro Q1 2028 · Ultra Q3 2028 Date: 2026-04-24
Shared family docs: ../_WORKFLOW-SOP.md · ../_HARDWARE-TOOLCHAIN.md · ../_FAMILY-EXPANSION-REVIEW.md · ../_ESIM-MULTI-CARRIER.md · ../_STANDALONE-AND-PLATFORM-INTEGRATION.md · _VALIDATION-AND-SENSOR-EXPANSION.md (companion validation doc).
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This section supersedes the v2.0 content where they conflict. Body below retained for context; v2.1 rules.
Architectural:
Compliance budget corrections (v2.0 undershot):
Firmware engineering budget correction: WanderOS-Band on Zephyr 3.7+ is production-credible BUT Zephyr gives us kernel + sensors + BLE; everything else (UI engine, OTA policy, notification permission model, companion app platform, third-party app ecosystem) is DIY scope. Budget $400-700k firmware engineering through Ultra ship, not $25-50k. 2-3 engineers × 18 months.
Non-invasive glucose reality-check: Rockley Photonics 2028 projection is optimistic per local-LLM ("may still be 3+ years away"). Ultra ships "glucose-ready" hardware (pins + slot + software framework); functional glucose puck ships when Rockley / Apple / Samsung tech actually matures, likely 2029-2030. Marketing language calibrated accordingly.
HRT biometric research: published literature is limited 2024-2026. WanderVerse commits to fund our own IRB-reviewed research program, academic partner + opt-in aggregated data + peer-reviewed publication. Budget $200-500k over 2-3 years. This is our clinical-research moat.
Sensor additions (from tech audit):
Software-only features enabled on existing hardware (firmware v1.x releases): AFib detection (PPG-only), sleep apnea indication, pre-diabetes risk estimation, migraine prediction (barometric + sleep), PCOS characterization, Parkinson's tremor detection (accel), seizure detection, cognitive-decline early indicators (gait + typing rhythm), chronic-fatigue biomarker fusion, burnout early-warning.
Revised pricing (reflecting +BOM from sensor additions):
Target margins (planning estimate): 48-53%.
Standalone + industry-integration mode (new per dual-mode principle):
Ambassador-assembly wearable-specific note: the small form factor changes Ambassador workflow, per-unit Ambassador assembly time is 25-40 minutes (vs 7-12 min for Bridge Mini) due to micro-components + waterproofing seals + sensor puck alignment + strap verification + per-unit biometric calibration. Fewer Ambassadors per station; one Ambassador does 12-18 bands per day at DVT yield.
Bottom line: v2.1 is honestly more expensive + more ambitious + more carefully-positioned than v2.0. Spec costs went up (mostly in cert + firmware), but so did the feature set and the standalone-mode requirement. Net effect: stronger product, tighter numbers, honest about what ships when.
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WanderBand is a privacy-first, repair-friendly, identity-aware wearable that does things no other smartwatch does, and does the things they all do, without sending your biometrics to a corporate cloud.
Four tiers serving four buyers:
| Tier | Price | Who | Killer feature |
|---|---|---|---|
| **Lite** | TBD | Everyday health tracker for privacy-conscious + budget-conscious buyers | Basic biometrics + silent panic + **no cloud ever** at Fitbit Versa pricing |
| **Standard** | TBD | Daily-driver smartwatch replacement for Apple Watch / Galaxy Watch users | Everything consumer smartwatches do + **trans-affirming biometrics + covert mode** |
| **Pro** | TBD | Health-data power users, survivors, trans/HRT bodies wanting clinical-grade | ECG + cuffless BP + HRV + glucose-ready + LTE eSIM + LoRa mesh |
| **Ultra** | TBD | Expedition, mobile-living, HAVEN, elite athletes, disaster-prep | Titanium + sapphire + 10-day battery + satellite SOS + dive mode + solar assist |
All four tiers ship with:
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Primary audiences:
1. Trans, nonbinary, and HRT-using people: the only wearable calibrated for your body, not a cis baseline. Menstrual + hormone-cycle tracking that's respectful, accurate, and doesn't assume your gender. HRV + stress metrics adjusted for exogenous hormones. 2. Survivors of intimate partner violence / trafficking / abusive households, silent panic button, duress unlock code, covert mode hides safety features from someone watching your wrist, emergency evacuation triggers location + audio recording + HAVEN alert. 3. Digital nomads / mobile-living / LGBTQ+ travelers: LTE eSIM + Airalo integration (via companion WanderRouter Standard-5G/Ultra), LoRa mesh to WanderSafeMesh, satellite SOS. 4. High-privacy households, data local-only; no Apple/Google/Samsung health cloud. Family filtering + identity-aware defaults inherit from WanderOS ecosystem. 5. Clinical self-trackers: ECG + HRV + temp + cuffless BP for people managing conditions (AFib, hypertension, PCOS, perimenopause, long COVID, thyroid, trans health). 6. Elderly safety / aging-in-place, fall detection + heart rate anomaly alerts + location sharing with trusted contacts + medication reminders (WanderRx integration).
Who it's NOT for:
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No other wearable ships any of these. Together they are a category no one else competes in.
Mainstream wearable algorithms are trained on cisgender-baseline data. For trans + HRT bodies, this means:
WanderBand:
Five layers of safety features that work without anyone watching your wrist being able to tell:
Single feature that combines everything the band can do into one pre-packaged response. Triggered by: silent panic, duress unlock, crash detection, fall detection, AFib detection, or voice trigger.
Pro + Ultra tiers include a low-power LoRa module. When cellular fails:
Respectful is specific. It means:
Smoothly paired with:
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Form factor: Wrist-Small (40mm polymer case), 15mm thick Screen: 1.3" AMOLED 320×320, 600-nit, not always-on (battery) Case material: Polymer Water resistance: IP67 (handwashing, rain, shower, not swimming) Battery life: 7 days typical use, 12 days always-off-screen Sensors: HR (PPG), accelerometer, gyroscope, altimeter, skin temperature Connectivity: BLE 5.3 + WiFi 2.4 GHz (limited to onboarding + time sync) Charging: USB-C magnetic pogo dock What it does NOT have: GPS, ECG, SpO2, cellular, NFC, microphone, speaker
Target buyer: fitness-tracker buyer who wants privacy + silent panic + doesn't need premium smartwatch features. Competes with Fitbit Versa ($229), Amazfit GTR ($149), Xiaomi Mi Band (but with real case, not just strap).
Form factor: Wrist-Small (42mm) OR Wrist-Large (46mm aluminum), 11mm thick Screen: 1.5" or 1.8" AMOLED LTPO 420×420/480×480, 1000-nit peak, always-on optional Case material: 6061-T6 aluminum, 3 color options (Black / Champagne / Deep-Teal) Water resistance: 5 ATM (swimming OK, shallow snorkeling) Battery life: 5 days typical / 2 days with always-on-display Sensors: Lite's full sensor suite + SpO2 (blood oxygen), PPG-based HRV, 16-channel ECG-adjacent (proximity-only, not diagnostic), high-accuracy GPS (dual-band L1), BLE 5.4 + WiFi 6, NFC (Google Wallet / Apple Wallet equivalent via WanderOS) Connectivity: BLE + WiFi 6 + NFC + (no cellular, phone-paired for connectivity) Charging: Same pogo-pin dock as Lite Extras over Lite: Microphone, small speaker (IP-rated), haptic LRA, always-on display option
Target buyer: Everyday smartwatch daily driver. Replaces Apple Watch SE ($249), Galaxy Watch 7 ($299), Pixel Watch 3 ($349). For buyers who want premium experience + privacy + identity-aware features.
Form factor: Wrist-Large (46mm) OR Wrist-Rugged (49mm stainless steel option), 12mm thick Screen: 1.8" AMOLED LTPO 480×480, 1500-nit peak, always-on standard, sapphire crystal Case material: 316L stainless steel (standard) OR 6061-T6 aluminum (base Pro) Water resistance: 10 ATM + swim-proof pogo-pin seal Battery life: 5 days typical / 3 days with always-on / 1.5 days with LTE active Sensors: Standard's full suite + clinical-grade ECG (single-lead, FDA-clearance pathway pursued), continuous-wear cuffless blood pressure (PPG+ECG+machine-learning, with initial cuff calibration), skin temperature continuous, bioimpedance body composition (body fat %, muscle %, hydration), AFib detection algorithm, GLUCOSE-READY SLOT (hardware pins for future non-invasive glucose module when tech ships 2027-2028) Connectivity: BLE + WiFi 6 + NFC + LTE Cat-4/5 eSIM via Telit ME910G1-WW or similar + LoRa 915 MHz module for WanderSafeMesh Charging: Pogo dock + Qi wireless charging (slow) Cellular: eSIM + dual-profile + Airalo compatibility (via WanderRouter family) + 24 eSIM slots Extras over Standard: Microphone array (2 mics), louder speaker for phone calls, bigger battery, LTE standalone operation (leave phone home), LoRa mesh access, glucose-ready hardware, clinical-grade heart sensors
Target buyer: Health-data power users, chronically-ill people managing conditions (AFib, hypertension, diabetes, with glucose module shipping 2027+), trans/HRT bodies wanting full clinical precision, survivors wanting maximum safety capability. Competes with Apple Watch Series 11 ($399-499), Samsung Galaxy Watch 7 Classic ($449), Garmin Venu 4 ($449).
Form factor: Wrist-Rugged (52mm titanium case), 14mm thick Screen: 1.92" AMOLED LTPO 502×410, 3000-nit (direct-sunlight-readable), sapphire crystal, second-gen Gorilla Victus back Case material: Grade 5 titanium (primary) + PVD coating options + optional Ambassador-finished wood inlay bezel Water resistance: 100m WR + EN 13319 dive-mode rated (recreational dive to 40m) Battery life: 10 days typical use / 5 days with always-on + continuous GPS Sensors: Pro's full suite + dual-frequency GPS L1+L5 (military-grade precision 0.3m), depth sensor (dive mode), altimeter/barometer, compass, 3-axis magnetometer, ambient light + UV, skin temperature array (multi-point, not single), non-invasive glucose module PRE-INSTALLED (Rockley Photonics class, shipping 2028 per current roadmap), sleep radar (presence + breathing rate without contact) Connectivity: Pro's full + 3GPP NTN satellite SOS (Skylo or Iridium Certus partnership, 2028 launch), UWB (Apple-compatible precision location), 60 GHz mmWave radar (gesture + presence), thermal IR sensor (skin + environment) Charging: Pogo dock + Qi wireless + solar surface assist (2-3W input from sapphire crystal surface, Garmin Fenix Solar-class, adds 2-5 days of typical use in sunlight) Extras over Pro: Full-satellite SOS (no phone needed), extreme environmental sensors, dive computer mode, tactical mission modes (pre-configured profiles for night ops, high-altitude, deep-desert, back-country), titanium + sapphire everywhere, Ambassador-hand-finished bezel option
Target buyer: Expedition + mobile-living + HAVEN mission-partners + emergency-prep + elite athletes + buyers who want everything + identity-aware features for high-risk travelers. Competes with Apple Watch Ultra 3 ($799), Garmin Fenix 8 ($999), Suunto Vertical ($629), Polar Grit X2 Pro ($599).
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The underside of every WanderBand, the part that touches your skin, is a detachable sensor module ("sensor puck") held by 4× small screws + board-to-board connector.
Why: new biometric tech ships every 12-18 months. Apple Watch can't add non-invasive glucose because the whole device is sealed. WanderBand can because the puck swaps.
Ship tiers:
Upgrade cost: Send-back to Ambassador depot, puck swap, $25 service fee + puck price. Your original band, new sensors. No existing watch vendor offers this, every other wearable goes to e-waste when tech advances.
Industry-standard 22mm quick-release. Works with:
Strap swap takes 5 seconds, no tools, per Standard 2 + 6b.
Three platform sizes, interoperable with all tiers:
Users with smaller wrists can order Lite/Standard in 40mm; larger wrists get 46mm. Pro/Ultra have defined form factors (not user-sized).
Every WanderBand's rear sensor puck has an engraved inner ring visible when the puck is removed for service/upgrade. Contains:
Permanent, weatherproof, part of the device's history. Never removable without destroying the puck.
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Mapped against _FAMILY-EXPANSION-REVIEW.md 17-category superset adapted for wearables:
| Feature | Lite | Std | Pro | Ultra | Notes |
|---|---|---|---|---|---|
| Optical HR (PPG) | ✅ | ✅ | ✅ | ✅ | Continuous + on-demand |
| 24-hour HR trends | ✅ | ✅ | ✅ | ✅ | |
| HRV (time + frequency domain) | — | ✅ | ✅ | ✅ | HRT-calibrated profiles |
| SpO2 | — | ✅ | ✅ | ✅ | Continuous on Pro/Ultra |
| ECG (single-lead, FDA-clearance pathway) | — | — | ✅ | ✅ | AFib detection validated |
| Cuffless blood pressure | — | — | ✅ (with periodic cuff calibration) | ✅ | |
| Skin temperature (single-point) | ✅ | ✅ | ✅ | ✅ | |
| Skin temperature (multi-point) | — | — | — | ✅ | Ultra's multi-array |
| Bioimpedance body composition | — | — | ✅ | ✅ | Body fat/muscle/hydration |
| Non-invasive glucose (HW-ready) | — | — | 🆕 slot | 🆕 module | Shipping depends on Rockley/Apple/Samsung 2027-2028 tech |
| Respiratory rate (PPG-derived) | ✅ | ✅ | ✅ | ✅ | |
| Stress (HRV-based) | — | ✅ | ✅ | ✅ | HRT-calibrated |
| Sleep tracking (stages) | ✅ basic | ✅ | ✅ | ✅ enhanced | Ultra has sleep radar for partner-in-bed detection |
| Fall detection | — | ✅ | ✅ | ✅ | |
| Crash detection (vehicle) | — | ✅ | ✅ | ✅ | Pairs with WanderCar |
| AFib detection + alert | — | — | ✅ | ✅ | FDA-submitted algorithm |
| Feature | Lite | Std | Pro | Ultra |
|---|---|---|---|---|
| BLE 5.3/5.4 | ✅ | ✅ | ✅ | ✅ |
| WiFi 2.4 GHz | ✅ (onboarding) | ✅ | ✅ | ✅ |
| WiFi 6 dual-band | — | ✅ | ✅ | ✅ |
| NFC | — | ✅ | ✅ | ✅ |
| Cellular LTE (eSIM) | — | — | ✅ | ✅ |
| Cellular 5G (when modem size shrinks, 2028+) | — | — | 🆕 roadmap | 🆕 roadmap |
| LoRa 915 MHz mesh | — | — | ✅ | ✅ |
| UWB (Apple-precision) | — | — | — | ✅ |
| GPS single-band L1 | — | ✅ | ✅ | ✅ |
| GPS dual-band L1+L5 | — | — | ✅ Pro Max opt | ✅ |
| GLONASS / Galileo / BeiDou | — | ✅ | ✅ | ✅ |
| 3GPP NTN satellite SOS | — | — | — | 🆕 2028 launch |
| Bluetooth audio (calls) | — | ✅ | ✅ | ✅ |
| Feature | Lite | Std | Pro | Ultra |
|---|---|---|---|---|
| AMOLED screen | ✅ 1.3" | ✅ 1.5-1.8" | ✅ 1.8" | ✅ 1.92" |
| LTPO (variable refresh) | — | ✅ | ✅ | ✅ |
| Always-on display | — | ✅ opt | ✅ | ✅ |
| Peak brightness (nits) | 600 | 1000 | 1500 | 3000 |
| Sapphire crystal | — | opt | ✅ | ✅ |
| Touch | ✅ | ✅ | ✅ | ✅ |
| Rotating crown | — | ✅ | ✅ | ✅ |
| Side button | ✅ | ✅ | 2× | 3× (includes dive/lap button) |
| Haptic LRA | basic | ✅ premium | ✅ premium | ✅ premium |
| Microphone | — | ✅ | ✅ dual | ✅ array |
| Speaker | — | ✅ small | ✅ | ✅ rugged |
| Feature | Lite | Std | Pro | Ultra |
|---|---|---|---|---|
| Cycle tracking (any body that cycles) | — | ✅ | ✅ | ✅ |
| HRT dose tracking (WanderRx) | — | ✅ | ✅ | ✅ |
| Sleep score | ✅ basic | ✅ | ✅ | ✅ detailed |
| Readiness score (HRV+sleep+activity) | — | ✅ | ✅ | ✅ |
| Training plans + structured workouts | — | ✅ basic | ✅ | ✅ advanced |
| Multi-sport tracking | ✅ basic | ✅ | ✅ | ✅ dive + tactical modes |
| Menstrual cycle predictions | — | ✅ | ✅ | ✅ |
| Ovulation prediction (temp+HRV+symptoms) | — | — | ✅ | ✅ |
| Pregnancy mode | — | ✅ | ✅ | ✅ |
| Medication reminders (WanderRx) | ✅ | ✅ | ✅ | ✅ |
| Perimenopause + menopause tracking | — | ✅ | ✅ | ✅ |
| Feature | Lite | Std | Pro | Ultra |
|---|---|---|---|---|
| Silent panic button | ✅ | ✅ | ✅ | ✅ |
| Duress unlock code | ✅ | ✅ | ✅ | ✅ |
| Covert watch faces | ✅ | ✅ | ✅ | ✅ |
| Hidden app folder (HR-pattern second factor) | — | ✅ | ✅ | ✅ |
| Scheduled public mode | ✅ | ✅ | ✅ | ✅ |
| Emergency Evacuation Mode | ✅ limited (cellular via phone) | ✅ | ✅ | ✅ full (incl. satellite SOS) |
| Location share with trusted contacts | ✅ | ✅ | ✅ | ✅ |
| HAVEN safe-zone beacon detection | — | — | ✅ (via LoRa + BLE) | ✅ |
| HAVEN operator alert | — | — | ✅ | ✅ |
| Safe passage mode | ✅ | ✅ | ✅ | ✅ |
| Trans-affirming biometrics calibration | — | ✅ | ✅ | ✅ |
| Post-Roe privacy (disable cycle tracking + wipe) | — | ✅ | ✅ | ✅ |
| HIPAA-safe clinician export | — | ✅ | ✅ | ✅ |
| Feature | Lite | Std | Pro | Ultra |
|---|---|---|---|---|
| No cloud account required | ✅ | ✅ | ✅ | ✅ |
| No telemetry by default | ✅ | ✅ | ✅ | ✅ |
| Data local only | ✅ | ✅ | ✅ | ✅ |
| Data backup to user-chosen target (WanderVault / WanderRouter NAS / self-hosted HA) | ✅ | ✅ | ✅ | ✅ |
| Encrypted on-device storage | ✅ | ✅ | ✅ | ✅ |
| Secure element (SE051 or integrated) | — | ✅ | ✅ | ✅ |
| Health data never to Apple Health / Google Fit by default | ✅ | ✅ | ✅ | ✅ |
| Identity-aware defaults (LGBTQ+/trans/undoc aware) | ✅ | ✅ | ✅ | ✅ |
| Encrypted Bluetooth comms | ✅ | ✅ | ✅ | ✅ |
| Disable location with one physical action | ✅ (crown-hold) | ✅ | ✅ | ✅ |
| Feature | Lite | Std | Pro | Ultra |
|---|---|---|---|---|
| Water resistance | IP67 | 5 ATM | 10 ATM | 100m + dive |
| Case material | Polymer | 6061 aluminum | Aluminum or 316L stainless | Grade 5 titanium |
| Screen | Gorilla Glass 5 | Gorilla Glass 6 / opt sapphire | Sapphire | Sapphire |
| Drop rating | 1m | 1.5m | 2m | 2.5m + IK08 impact |
| Operating temp | -10 to +50°C | -15 to +55°C | -20 to +60°C | -40 to +70°C |
| Integration | Lite | Std | Pro | Ultra |
|---|---|---|---|---|
| WanderOS management | ✅ | ✅ | ✅ | ✅ |
| WanderRouter family (RF-power adjustment when worn) | ✅ | ✅ | ✅ | ✅ |
| WanderNode Hub (presence detection) | ✅ | ✅ | ✅ | ✅ |
| Sensor Pod | — | ✅ | ✅ | ✅ |
| WanderCam/Bell/Lock (band-as-key) | — | ✅ | ✅ | ✅ |
| WanderCar (driver ID + crash detection) | — | ✅ | ✅ | ✅ |
| WanderRx (HRT + medication) | ✅ | ✅ | ✅ | ✅ |
| WanderVault (encrypted backup) | ✅ | ✅ | ✅ | ✅ |
| WanderShield (survivor safety) | ✅ | ✅ | ✅ | ✅ |
| WanderHealthy / WanderHeart / WanderMind | ✅ | ✅ | ✅ | ✅ |
| HAVEN safe-zone detection | — | — | ✅ | ✅ |
| WanderMesh LoRa | — | — | ✅ | ✅ |
| Apple Health / Google Fit bridge (opt-in, one-way) | ✅ | ✅ | ✅ | ✅ |
| Home Assistant / Matter integration (via WanderNode Hub) | ✅ | ✅ | ✅ | ✅ |
| Voice assistant (Auren local or cloud-free) | — | ✅ | ✅ | ✅ |
| Axis | Lite | Std | Pro | Ultra |
|---|---|---|---|---|
| Case size options | 40mm | 42mm or 46mm | 46mm or 49mm | 52mm |
| Case color/finish | 3 (Black/Champagne/Teal) | 3 + Pro | 3 + Lux stainless | 3 + Lux titanium + wood bezel |
| Screen size | fixed | 2 options | fixed | fixed |
| Strap (stock) | silicone | silicone or fluoro | fluoro or nylon | fluoro/nylon + titanium opt |
| Lux Artisan strap option | TBD | TBD | TBD | TBD (Ambassador) |
| Ambassador-engraved glyph | ✅ standard | ✅ | ✅ | ✅ hand-engraved by named Ambassador |
| Sensor puck tier | v1 only | v1 only | v1.5 (glucose-ready slot) | v2 (glucose-installed when ready) |
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One of WanderBand's biggest differentiators: you buy it once, it gets better over time. New biometric modules ship via send-back upgrade.
| Year | Tech | Availability | Puck tier |
|---|---|---|---|
| 2027 | PPG + HRV + skin temp + ECG (clinical-grade) | Ship-day all tiers | v1.5 on Pro |
| 2027-Q3 | Continuous cuffless BP (with cuff calibration) | Pro ship | v1.5 |
| 2028-Q1 | Dual-frequency GPS, NTN satellite SOS | Ultra ship | — |
| 2028-Q3 | **Non-invasive glucose** (Rockley Photonics optical tech, Samsung/Apple parallel efforts) | Ultra ship as platform; Pro as upgrade | v2 |
| 2029-Q1 | Continuous hydration, ketones, lactate | Upgrade modules | v2.5 |
| 2029-Q2 | Breath biomarkers (CO2, acetone: diabetes indicator) | Upgrade module | v3 |
| 2030+ | Emerging: sweat-sensor ions, real-time cortisol, UV-visible-spectroscopy biomarkers | Upgrade modules | v4 |
The promise: Your 2027 WanderBand Pro with a 2028 glucose puck becomes a 2029 hydration-puck, same chassis, same software, same memories, same Ambassador. This alone is more repair-culture than anything the wearable industry has ever shipped.
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Platform: ~$52 FOB (MT2502 class SoC or Apollo4 + minimal sensor puck v1 + polymer case + small AMOLED + basic battery) PCBA at 1k: +$15 FOB total: ~$67 Target margin (planning estimate): ~48%
Platform: ~$98 FOB (nRF5340 or Ambiq Apollo4 Blue Plus + sensor puck v1 + aluminum case + larger AMOLED + better battery + WiFi 6 + NFC) PCBA at 1k: +$20 FOB total: ~$118 Target margin (planning estimate): ~53%
Platform: ~$175 FOB (same SoC + sensor puck v1.5 with ECG/cuffless BP hardware + stainless case + sapphire + LTE eSIM module + LoRa module + bigger battery) PCBA at 1k: +$30 FOB total: ~$205 Target margin (planning estimate): ~48%
Platform: ~$320 FOB (titanium case + glucose-ready puck v2 + dual-band GPS + NTN satellite modem + solar surface + larger battery + premium everything) PCBA at 1k: +$45 FOB total: ~$365 Target margin (planning estimate): ~48%
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Cert budget Lite + Standard: ~$8-15k total family launch cost
Pro/Ultra claim clinical-grade biometrics for ECG, cuffless BP, AFib detection, glucose (when shipping). This triggers:
Cert budget Pro + Ultra: ~$200k (ECG + cuffless BP + AFib) plus ~$500k (glucose when shipped) plus annual audit costs
Phased strategy: ship Pro/Ultra with "wellness-tier" claims at v1.0 (not medical-grade), pursue FDA clearance for ECG + AFib in v1.1 (6-month post-launch), clinical validation study for cuffless BP in v1.5, glucose as a separate product launch in 2028 once Rockley tech matures.
Pro + Ultra add: FCC Part 22/24/27 (cellular), PTCRB, GCF, carrier-specific (T-Mobile, Verizon, AT&T, Google Fi). Telit ME910G1-WW or equivalent for LTE Cat-M1, has modular cert we can inherit.
Ultra adds: 3GPP NTN for satellite SOS. This requires partnership with Skylo, Iridium, or Globalstar; cert pathway defined by the network operator.
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Why not fully open PCBs: our nearest competitors (Whoop, Fitbit, Apple) have sealed everything. Open hardware strap + community firmware + repairable sensor puck is already radical. Full open PCB + mechanical design may come in 2029+ when the product has proven itself and competitors can't undercut us before we've built our customer base.
Framework Laptop is our north star. They open more over time. We'll do the same.
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If you buy Pro in 2027 for $399 and use WanderVerse's upgrade service over the next 7 years:
| Year | Upgrade | Cost | Your watch has... |
|---|---|---|---|
| 2027 | Initial purchase | $399 | ECG + cuffless BP (beta) + HRV + HRT profile |
| 2028 | Glucose puck module | +$120 | + non-invasive glucose + clinical-grade BP |
| 2029 | Hydration + lactate puck | +$80 | + training-grade sports biometrics |
| 2030 | Emerging sensor puck | +$70 | + 2030's killer biometric |
| 2031 | Battery replacement | +$40 | + fresh battery |
| 2032 | Cover refresh (Pro CNC → Lux wood bezel) | +$180 | + Lux-tier aesthetics |
| 2033 | Ambassador-re-signed on anniversary request | +$30 | + new Ambassador glyph inside |
Total 7-year cost: $917.
Versus Apple Watch: $399/year replacement × 7 = $2,793. And at year 7, Apple's 2027 model is unsupported.
Framework-level longevity for wearables. No one else offers this.
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All Ambassador-assembled. All user-DIY-repairable or send-back-swappable:
| Service | Cost | Who | Time |
|---|---|---|---|
| Battery replacement (DIY) | $30 battery + shipping | user | 30 min, 1 tool |
| Battery replacement (send-back) | $50 battery + $25 service + shipping | Ambassador | 5 days |
| Sensor puck upgrade | module price + $25 service + shipping | Ambassador | 5 days |
| Cover/case refresh | cover price + shipping (DIY swap) | user | 5 min |
| Screen replacement (Lite/Std) | $80 screen + $25 service | Ambassador only | 7 days |
| Screen replacement (Pro/Ultra sapphire) | $150-250 screen + $40 service | Ambassador only | 7 days |
| Firmware update (WanderOS-Band) | free | user | OTA via phone |
| Straps | $20-500 via catalog | user | 5 seconds |
| Lux Artisan strap (custom) | $150-500 + custom time | Ambassador Artisan | 2-6 weeks |
| End-of-life recycling | free + $15 credit toward next-generation WanderBand | WanderVerse | — |
Repair culture concretely: every WanderBand ships with a repair tool pouch + sensor-puck tutorial video + strap-swap video + battery-replacement video. No warranty-void-if-opened. Full Framework-laptop-style user-first discipline.
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| Feature | WanderBand | Apple Watch | Garmin | Fitbit | Samsung | Whoop | Oura |
|---|---|---|---|---|---|---|---|
| No cloud account required | ✅ | ❌ | ❌ | ❌ | ❌ | ❌ | ❌ |
| Trans-affirming biometrics + HRT profiles | ✅ | ❌ | ❌ | ❌ | ❌ | ❌ | ❌ |
| Modular sensor puck (upgrade over years) | ✅ | ❌ | ❌ | ❌ | ❌ | ❌ | ❌ |
| Silent panic + duress unlock + covert mode | ✅ | limited | ❌ | ❌ | ❌ | ❌ | ❌ |
| LoRa mesh access (cellular-down safety) | ✅ Pro+ | ❌ | limited | ❌ | ❌ | ❌ | ❌ |
| Identity-aware defaults | ✅ | ❌ | ❌ | ❌ | ❌ | ❌ | ❌ |
| Ambassador-signed supported-employment assembly | ✅ | ❌ | ❌ | ❌ | ❌ | ❌ | ❌ |
| 7-year parts + firmware guarantee | ✅ | 3 yr typical | 2 yr | 2 yr | 2 yr | subscription | 2 yr |
| User-replaceable battery | ✅ | ❌ | ❌ | ❌ | ❌ | ❌ | ❌ |
| Dive mode (rec dive 40m) | ✅ Ultra | ✅ Ultra 2/3 | ✅ | ❌ | ❌ | ❌ | ❌ |
| Satellite SOS | ✅ Ultra (2028) | ✅ (paired) | ✅ inReach | ❌ | ❌ | ❌ | ❌ |
| Non-invasive glucose | ✅ Ultra (2028) | ❌ (research) | ❌ | ❌ | ❌ (research) | ❌ | ❌ |
| Post-Roe privacy (disable cycle + wipe) | ✅ | ❌ | ❌ | ❌ | ❌ | ❌ | ❌ |
| Pay-per-service (not subscription) | ✅ | ✅ | ✅ | subscription creep | ✅ | **subscription-locked** | ✅ |
The moat: trans-affirming + survivor-affirming + modular-upgradable + open-firmware + Ambassador-assembled + privacy-first. No competitor touches 3 of these, let alone 6.
---
1. Non-invasive glucose supplier: Rockley Photonics roadmap assumed; if delayed, Pro/Ultra "glucose-ready" slot stays empty longer. Mitigation: don't premarket glucose as ship-day feature, promise "when Rockley ships." 2. 3GPP NTN satellite SOS partner (Skylo, Iridium Certus, Globalstar) Stage 4 research. Ultra's satellite SOS may slip to 2028-Q4+ depending on network partner. 3. FDA 510(k) ECG clearance path. We'll submit at v1.1 (post-ship), so v1.0 Pro/Ultra ship with "wellness ECG" not "medical ECG." Marketing copy needs to be careful. 4. HRT biometric calibration research, published research on HRT + HRV / sleep / metabolic rate is limited 2024-2026. WanderVerse commits to our own IRB-reviewed research contribution. This is a moat opportunity: WanderVerse-affiliated clinical research on trans health biometrics, with opt-in aggregate (differential privacy) datasets feeding our algorithms + publishing peer-reviewed papers. 5. Battery chemistry trade-off: LiFePO4 is safer + longer cycle life but lower energy density = bigger/heavier. Li-ion (LCO/NMC) is what competitors use. Decision: ship Li-ion (user-replaceable, standard chemistry) with optional LiFePO4 upgrade for users who want it at a weight penalty. 6. Sensor-puck connector interface, proprietary pin design that survives 100+ swap cycles without fatigue. Magnetic pogo-pin with latch? Zero-insertion-force spring-loaded? Stage 3 mechanical engineering decision. 7. Cellular carrier activation for Pro+ eSIM, same challenges as WanderRouter Standard-5G. Apply the same architecture (Airalo + Holafly + Nomad, multi-profile eUICC). 8. Pricing sensitivity, is the Lite price target achievable with a real AMOLED + metal crown + magnetic dock? Validates at Stage 4 CM quote. Fallback: raise the Lite price. 9. Supply chain resilience, wearable SoCs (Ambiq, Nordic, Qualcomm) are more concentrated than networking silicon. Second-source discipline from day 1.
---
| Qtr | Milestone |
|---|---|
| 2026-Q3 | Stage 0-5 (feature matrix, BOM, compatibility, DFM/DFA), largely done in this spec |
| 2026-Q4 | Stage 6-7 (thermal, EMC, compliance) + Stage 4 Perplexity validation |
| 2027-Q1 | **EVT**: Lite + Standard first tier prototype fab (250 units each) |
| 2027-Q2 | DVT + cert runs for Lite + Standard |
| 2027-Q3 | **Lite + Standard first customer ship** |
| 2027-Q4 | Pro EVT |
| 2028-Q1 | **Pro first customer ship** |
| 2028-Q2 | Ultra EVT (assumes Rockley glucose + NTN partner) |
| 2028-Q3 | **Ultra first customer ship** |
18 months from spec-completion to full 4-tier family shipping.
---
| Tier | Volume est. | FOB avg | Retail avg | Revenue |
|---|---|---|---|---|
| Lite | 3000 | $67 | TBD | TBD |
| Standard | 2500 | $118 | TBD | TBD |
| Pro | 800 | $205 | TBD | TBD |
| Ultra | 250 | $365 | TBD | TBD |
| Strap catalog attach (~25%) | — | — | TBD | TBD |
| Sensor-puck upgrade revenue (year 2+) | — | — | TBD | ramping |
| **Total** | **6,550** | — | — | TBD |
Comparable to WanderRouter family first-18-month revenue. Revenue projections are on hold until prices are set.
---
Full SOP v2 artifact structure (to fill in Stage 2-10 detailed CSVs/docs):
wanderband/
├── WANDERBAND-SPEC.md (this doc)
├── FEATURE-MATRIX.md (detailed per-tier — extract above)
├── BOM-platform.csv (per-tier BOMs)
├── BOM-modules.csv (configurator + puck upgrades)
├── CONFIGURATOR.md (full axes + example configs)
├── COMPATIBILITY.md (sensor puck interface + strap compat)
├── SOURCING.csv (Stage 4 — supplier research)
├── DFM-DFA-DFT.md (wearable-specific assembly challenges)
├── THERMAL-EMC.md (wrist-worn RF + thermal)
├── COMPLIANCE.md (FDA + cellular + battery + global)
├── HW-FW.md (Zephyr + WanderOS-Band stack)
├── SERVICE-FLOW.md (repair + upgrade + Ambassador choreography)
├── GATE.md (EVT/DVT/PVT per tier)
├── DECISIONS.md (running log)
└── STL-OPEN-FILES/
├── README.md
├── strap-quick-release-22mm.stl
├── sensor-puck-tool-guide.stl
├── charging-dock-base.stl
└── repair-caddy.stl
(This spec is the anchor; the detailed CSVs + sub-docs can be extracted from this content into the individual files over next session if needed for implementation-handoff fidelity.)
---
WanderBand is a genuinely aspirational product that combines:
1. Clinical-grade biometrics at Apple Watch retail 2. Trans-affirming algorithms no one else has even tried to build 3. Survivor-grade safety features nobody else ships 4. Modular sensor-puck architecture that keeps the band relevant for 7+ years 5. Repair culture, user-replaceable battery, 22mm straps, Ambassador-assembled 6. Privacy-first default, no cloud, data stays on your body 7. WanderVerse ecosystem integration, routers, cameras, cars, health, safety all coordinated 8. Open firmware: WanderOS-Band + Zephyr; AsteroidOS flash compatible
Four tiers, Lite to Ultra (prices TBD). Ambassador-engraved case backs. 7-year parts guarantee. Sensor upgrades via send-back. Community STL straps. LoRa mesh to WanderSafeMesh.
No other wearable on the market in 2026 has even 3 of these. WanderBand has all 8.
Ready for implementation engineering + compliance path + first RFQ cycle.