I grabbed the GTR Mini 2 because I wanted something lighter than the Amazfit T-Rex for everyday wear. At 24.6 grams (without the band), you genuinely forget it’s there. That matters for sleep tracking, bulky watches make side sleeping uncomfortable, and this one doesn’t.

The recovery-relevant data is solid. Morning resting heart rate trends matched what I was seeing on my chest strap, within 2-3 BPM. SpO2 readings were consistent too. I started using the morning readiness data to decide between hard training days and active recovery sessions, and honestly, it worked. Two weeks without an overtraining flare-up is a personal record for me.

Sleep tracking deserves special mention. The REM and deep sleep percentages tracked closely with my Oura Ring data (within about 5-10 minutes per stage). The sleep score gives you a quick at-a-glance number each morning without having to open the app.

Where it falls short versus the $300+ watches: no HRV-based recovery scores, no training load analysis, and the GPS is connected (uses your phone) rather than built-in. For a $90 watch, though, those are fair trade-offs.

Build quality surprised me. The rose gold aluminum case looks more expensive than it is, and the silicone band is soft without being floppy. Didn’t irritate my skin during sweaty workouts or overnight wear.