Current model just released
Best for: Athletes, coaches, and fitness-obsessed users who want deep recovery and sleep data without screen distractions. WHOOP suits those who train hard and want to understand whether their body is ready to push. Not for casual users or those who want smartwatch features like notifications or GPS.
Full details →Overdue for a refresh — no successor announced yet. Prices should be at their lowest
Best for: Anyone who wants basic health tracking — steps, sleep, heart rate, SpO2 — without spending more than $40 or carrying a bulky watch. Works with both iPhone and Android. A popular choice for kids, older adults, and budget-conscious fitness beginners.
Full details →| WHOOP 5.0 | Xiaomi Smart Band 9 | |
|---|---|---|
| Tier | Fitness Tracker | Fitness Tracker |
| Platform | iOS & Android | iOS & Android |
| Battery | 5 days | 14 days |
| Always-on display | ❌ | ✅ |
| GPS | ❌ | ❌ |
| Cellular | ❌ | ❌ |
| Health sensors | hrv, spo2, skin temp, respiratory rate, strain | hr, spo2, stress, sleep |
| Released | Sep 1, 2025 | Jul 22, 2024 |
| Cycle length | 1461 days | 365 days |
| Cycle advice | good | bad |
| Deals advice | neutral | good |
| Next model | WHOOP 6.0 (Expected ~2029) | — |
No distractions — WHOOP tracks everything without buzzing, glowing, or asking for your attention. All data lives in the app.
WHOOP's Recovery Score synthesises HRV, resting heart rate, sleep quality, and respiratory rate to tell you how ready your body is each day.
The WHOOP battery pack slides onto the device and charges it without removal — no gaps in overnight sleep tracking.
Most fitness trackers at this price use basic LCD displays. The Smart Band 9 brings a vivid AMOLED always-on screen — rare at this price point.
Continuous heart rate, SpO2, stress, and sleep tracking — all running for 2 weeks before charging. Most smartwatches last 1–2 days.
Full functionality on both platforms via the Mi Fitness app, including notifications, sleep analysis, and health trends.