Amazfit T-Rex 3 Pro vs Coros NOMAD
Amazfit T-Rex 3 Pro (2025, listed at $379) and Coros NOMAD (2025, listed at $349) are both sport watches, so the choice comes down to specifics.
Specs last updated · table prices are list prices; each card shows Amazon's current price when available
Amazfit T-Rex 3 Pro
Rugged AMOLED upgraded — sapphire glass, brighter 3,000-nit screen and improved dual-band GPS.
Coros NOMAD
Outdoor and fishing GPS watch with a 1.3-inch MIP screen, free preloaded global maps with turn-by-turn, an adventure journal for voice notes and 22 days of daily use.
The verdict
On the numbers we track, Amazfit T-Rex 3 Pro wins on battery life (25 days vs 22 days), tracked features (6 vs 4) and water rating (10ATM vs 5ATM); Coros NOMAD wins on weight (61 g vs 70 g) and price ($349 vs $379).
Bottom line: on raw specs the Amazfit T-Rex 3 Pro leads 3 to 2, but five spec categories are only a starting point. Match it to your phone, your main sport and your budget before you decide, or run the free quiz to see how each ranks for your answers.
Spec by spec
| Spec | Amazfit T-Rex 3 Pro | Coros NOMAD |
|---|---|---|
| Battery (rated) | 25 days | 22 days |
| Weight | 70 g | 61 g |
| List price | $379 | $349 |
| Water rating | 10ATM | 5ATM |
| Tracked features | 6 | 4 |
| Case size | 48 mm | 47.8 mm |
| Display | AMOLED | MIP |
| Works with | both iPhone and Android | both iPhone and Android |
| Listed best for | outdoor adventure and multisport and triathlon | outdoor adventure |
| Released | 2025 | 2025 |
Trophy marks the better value on the five measurable specs. Battery is the manufacturer's rating, not our test. How we score is on the methodology page.
Feature overlap
Both have (4)
- built-in GPS
- blood-oxygen (SpO₂)
- on-device music
- offline maps
Only Amazfit T-Rex 3 Pro (2)
- AMOLED display
- swim tracking
Only Coros NOMAD (0)
Nothing unique.
Which one should you pick?
Pick the Amazfit T-Rex 3 Pro if…
- You want fewer charges: about 25 days per charge vs 22 days.
- You need AMOLED display and swim tracking, which the Coros NOMAD does not list.
- Your main use is multisport and triathlon: it is listed for that and the Coros NOMAD is not.
- You might switch phones: it works with both iPhone and Android, the Coros NOMAD only works with Android.
- You swim or paddle: 10ATM vs 5ATM.
Skip it if…
- • You have a small wrist (under about 160 mm) — the 48 mm case we list is large (check whether a smaller size is sold).
- • You want something light enough to sleep in — it weighs 70 g.
Pick the Coros NOMAD if…
- You want to spend less: it lists for $30 less.
- You want a lighter watch: 61 g vs 70 g.
- You might switch phones: it works with both iPhone and Android, the Amazfit T-Rex 3 Pro only works with Android.
- You want a display that stays readable in direct sun and sips power.
Skip it if…
- • You have a small wrist (under about 160 mm) — the 47.8 mm case we list is large (check whether a smaller size is sold).
- • You want a bright, vivid AMOLED screen — this one uses a lower-power display.
Frequently asked questions
Which has better battery life, the Amazfit T-Rex 3 Pro or the Coros NOMAD?
The Amazfit T-Rex 3 Pro has the longer rated battery life: about 25 days per charge against 22 days. These are manufacturer ratings; heavy GPS, always-on display and cellular use will cut both.
Which is cheaper, the Amazfit T-Rex 3 Pro or the Coros NOMAD?
The Coros NOMAD has the lower list price: $349 against $379 in our database. List prices change often, so check Amazon for today's price.
Do the Amazfit T-Rex 3 Pro and Coros NOMAD work with iPhone and Android?
Yes, they have the same phone support: both iPhone and Android.
Which is better for swimming, the Amazfit T-Rex 3 Pro or the Coros NOMAD?
Amazfit T-Rex 3 Pro: 10ATM is suitable for swimming and surface water sports. It is not a dive rating unless the maker says so. Coros NOMAD: 5ATM is suitable for showering and pool swimming, but not for high-speed water sports or diving.
Not sure either is right for you?
Nine questions about your phone, sport, wrist and budget, scored against all of our watches with the reasoning shown.
Take the free quizWhere each one ranks #1 in our quiz
Amazfit T-Rex 3 Pro
It is not the top pick for any standard quiz profile.