WHOOP-Style Smart Bands Decoded: How Eternity Powers Next-Gen Wearables as OEM/ODM

WHOOP-style screenless band disassembled showing sensors

The $9.2B recovery wearable market is dominated by WHOOP’s screenless design – but what makes these devices tick? As a trusted OEM/ODM partner for 50+ global brands, Eternity breaks down the engineering secrets and how we implement them for clients.

 

Why WHOOP’s Screenless Design Wins

1. Military-Grade Sensor Stack

• 5-LED PPG array (20% more accurate than standard 2-LED)

• 3D accelerometer (detects micron-level muscle vibrations)

• Skin temperature module (±0.1°C clinical precision)

Eternity’s solution: We integrate same-tier sensors with modular PCB designs to reduce BOM costs by 15-30%.

 

2. Algorithm Advantages

• Recovery scoring (HRV + RHR + sleep stage fusion)

• Strain optimization (proprietary calorie burn models)

Our ODM value-add: White-label APIs for branded apps, with 90% WHOOP algorithm parity.

 

3 Manufacturing Realities Most Brands Miss

Challenge 1: Sensor Calibration

WHOOP spends $17\mathrm{/}unitonpost-assemblytuning\mathrm{.}Our\ast \ast auto-calibrationjigs\ast \ast cutthisto$3.

Challenge 2: Battery Constraints

No-screen devices need 100+ hour runtime. Our dual-cell designs achieve 30-day life at 12mm thickness.

Challenge 3: Subscription Model Hardware

We help clients implement:

• Lease-ready firmware (remote disable if unpaid)

• Hot-swap battery packs (for gym fleet models)

 

Why 68% of Brands Now Use OEMs Like Eternity

 

 

 

Your Band, Your Brand – Our Tech

Eternity offers 3 flexible partnership models:

1. Full ODM – Modify our ETQ59 screenless reference design

2. Sensor Modules – Supply only the core sensor stack

3. Algorithm Licensing – Integrate our recovery analytics

 

▶ Contact Our Wearable Engineers for a free feasibility assessment