Late in cycle — a new model is likely coming
Best for: Expedition athletes, mountaineers, and ultra-endurance competitors who do multi-day or multi-week events where charging is impossible. If you need GPS tracking for 140 continuous hours, no other watch comes close.
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 →| COROS Vertix | Xiaomi Smart Band 9 | |
|---|---|---|
| Tier | Sports GPS | Fitness Tracker |
| Platform | iOS & Android | iOS & Android |
| Battery | 140 days | 14 days |
| Always-on display | ❌ | ✅ |
| GPS | ✅ | ❌ |
| Cellular | ❌ | ❌ |
| Health sensors | hr, spo2, hrv, training load, skin temp | hr, spo2, stress, sleep |
| Released | Oct 1, 2023 | Jul 22, 2024 |
| Cycle length | 1095 days | 365 days |
| Cycle advice | bad | bad |
| Deals advice | good | good |
| Next model | COROS Vertix 3 (2026 or 2027) | — |
No other GPS watch currently on the market delivers 140 hours of GPS tracking — enough for most ultra-endurance events and multi-day mountain traverses.
GPS + GLONASS + Galileo + BeiDou + QZSS with dual-frequency reduces error in challenging terrain to near-meter precision.
Military-grade scratch and impact resistance for the harshest environments: extreme altitude, cold, and sustained physical stress.
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.