Amazfit Cheetah Pro vs T-Rex 3
Quick verdict
Choose the Amazfit Cheetah Pro if…
- You run fast and want the lightest watch (43 g) with maps and multi-band
- You also wear it for road training and every day
Choose the Amazfit T-Rex 3 if…
- You want a near-indestructible (military-grade) watch for technical terrain
- It's cheaper and you want maximum daily battery (27 days)
For maximum autonomy on long ultras, Amazfit Cheetah Pro lasts longer in GPS mode. If you want the lightest watch on your wrist, go for Amazfit Cheetah Pro. On budget, Amazfit T-Rex 3 is the more affordable option.
Amazfit Cheetah Pro or Amazfit T-Rex 3? GPS battery (44 h vs 42 h), weight (43 g vs 68 g), maps and multi-band, with a clear verdict and a check of whether each lasts your whole race.
Pick by what you need
- If you want the lightest (43 g) → Amazfit Cheetah Pro
- If you want to save without giving up the essentials → Amazfit T-Rex 3
Radar: where each watch wins
Absolute 0–100 scale, no exaggerated gaps: a tie stays a tie. Tied on 2 of 6 axes.
| Axis | Amazfit Cheetah Pro | Amazfit T-Rex 3 |
|---|---|---|
| GPS battery | 37/100 | 35/100 |
| Everyday battery | 47/100 | 90/100 |
| Lightness | 87/100 | 45/100 |
| Maps | 100/100 | 100/100 |
| Multi-band GPS | 43/100 | 50/100 |
| Display & extras | 100/100 | 100/100 |
GPS: 120 h = 100 · Weight: 35 g = 100, 95 g = 0 · Multi-band: by its battery (60 h = 100) · Display: AMOLED + music.
Spec-by-spec comparison
| Spec | Amazfit Cheetah Pro | Amazfit T-Rex 3 |
|---|---|---|
| GPS battery | 44 h | 42 h |
| Multi-band battery | 26 h | Yes |
| Smartwatch | 14 days | 27 days |
| Weight | 43 g | 68 g |
| Maps | ✓ | ✓ |
| Multi-band | ✓ | ✓ |
| Music | ✓ | ✓ |
| Display | AMOLED | AMOLED |
| Price | Mid-range | Entry |
| Where to buy | View on Amazon(opens in a new tab) | View on Amazon(opens in a new tab) |
GPS battery = each manufacturer's standard GPS mode; multi-band = dual-frequency (maximum accuracy). On Suunto, Polar Grit and Amazfit T-Rex the GPS figure already corresponds to dual-band mode. Figures verified against the manufacturer.
AmazfitAmazfit Cheetah ProRunning watch with dual-band GPS, offline maps and a 1.45" AMOLED display, at a fraction of a Garmin's price. 44 h in GPS mode (26 h dual-band), onboard music and just 43 g. Titanium bezel and AI coach. The value pick for runners who want navigation without overspending.
View on Amazon(opens in a new tab)AmazfitAmazfit T-Rex 3Ultra-rugged outdoor watch with dual-band GPS, offline maps and a 2,000-nit AMOLED display, at a mid-range price. 42 h in maximum-accuracy mode and up to 27 days in daily use. Military standard, 100 m water resistance and onboard music. Garmin Instinct-style toughness for far less.
View on Amazon(opens in a new tab)Will it last your race? Real battery across 300 races
We estimated a mid-pack runner's finish time for every race in our calendar (distance, elevation and terrain) and added a 25% safety margin. Here's the result:
Amazfit Cheetah Pro lasts 285 of 300 races
Amazfit T-Rex 3 lasts 282 of 300 races
We couldn't find that race in our calendar. Try another name or the town.
| Race | Battery needed | Amazfit Cheetah Pro | Amazfit T-Rex 3 |
|---|---|---|---|
| Trail du Saint-Jacques by UTMB139 km · 6000 m+ | 41 h | Lasts | Lasts |
| Canfranc-Canfranc100 km · 8848 m+ | 42 h | Lasts | Lasts |
| Restonica Trail by UTMB110 km · 7200 m+ | 42 h | Lasts | Lasts |
| Transgrancanaria128 km · 7500 m+ | 42 h | Lasts | Lasts |
| Mallorca by UTMB138 km · 5350 m+ | 43 h | Lasts | Dies |
| Mongolia Trail Run170 km · 3800 m+ | 43 h | Lasts | Dies |
| Las 100 Millas de Boñar – Noche Roja161 km · 4560 m+ | 43 h | Lasts | Dies |
| Trail Menorca Camí de Cavalls185 km · 3500 m+ | 45 h | Dies | Dies |
Estimate for a mid-pack runner on the longest distance, standard GPS on ultras and multi-band on races under 12 h. Tap a race to see the watches we recommend for it.
Verdict
For maximum autonomy on long ultras, Amazfit Cheetah Pro lasts longer in GPS mode. If you want the lightest watch on your wrist, go for Amazfit Cheetah Pro. On budget, Amazfit T-Rex 3 is the more affordable option.
Analysis: where they really differ
Same maker, same battery range (44 h vs 42 h), and both with maps, multi-band, music and AMOLED. What changes is the body: the Cheetah Pro is a 43 g running watch, slim and comfortable; the T-Rex 3 is a 68 g military-grade outdoor watch with a 2,000-nit screen, and cheaper. If you run fast and weight bothers you, Cheetah Pro; if your trail is rock, scrapes and adventure and you want a watch you don't have to baby, T-Rex 3.
Choose the Amazfit Cheetah Pro if…
- You run fast and want the lightest watch (43 g) with maps and multi-band
- You also wear it for road training and every day
- A chunky watch under your sleeve annoys you
Choose the Amazfit T-Rex 3 if…
- You want a near-indestructible (military-grade) watch for technical terrain
- It's cheaper and you want maximum daily battery (27 days)
- Full-sun readability (2,000 nits) matters to you