Wear Radar

COROS VertixvsAmazfit Band 7

COROS Vertix
Buy/Wait:bad

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.

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Amazfit Band 7
Buy/Wait:bad

Overdue for a refresh — no successor announced yet. Prices should be at their lowest

Best for: Budget-conscious users who want more features than a basic step counter — SpO2, stress, sleep analysis, and workout tracking — without paying for a full smartwatch. Works with both iPhone and Android.

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COROS VertixAmazfit Band 7
TierSports GPSFitness Tracker
PlatformiOS & AndroidiOS & Android
Battery140 days18 days
Always-on display
GPS
Cellular
Health sensorshr, spo2, hrv, training load, skin temphr, spo2, stress, sleep
ReleasedOct 1, 2023Sep 22, 2022
Cycle length1095 days699 days
Cycle advicebadbad
Deals advicegoodgood
Next modelCOROS Vertix 3 (2026 or 2027)

Why buy each?

COROS Vertix

140 hours of continuous GPS

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.

5-satellite dual-frequency system

GPS + GLONASS + Galileo + BeiDou + QZSS with dual-frequency reduces error in challenging terrain to near-meter precision.

Sapphire glass and titanium case

Military-grade scratch and impact resistance for the harshest environments: extreme altitude, cold, and sustained physical stress.

Amazfit Band 7

18-day battery at under $50

18 days of typical use with health monitoring — nearly 3 weeks without charging, far beyond any smartwatch competitor.

Alexa built-in

Ask Alexa for weather, timers, reminders, and smart home controls directly from your wrist — unusual for a sub-$50 fitness band.

PAI health scoring

Amazfit's Personal Activity Intelligence score aggregates your daily activity into a single 0–100 health index, guiding you toward optimal activity levels.