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Head to Head

Amazfit T-Rex 3 vs Garmin Enduro 3

Both are built around battery life for long outdoor days, but the Enduro 3 more than doubles the T-Rex 3's GPS runtime and reaches Garmin's max analytics tier, for $630 more.

Amazfit T-Rex 3Amazfit

Amazfit T-Rex 3

4.4
Best Rugged Value
Garmin Enduro 3Garmin

Garmin Enduro 3

4.7
Top for Battery Life
$269
Lower price
MSRP
$899
Full Smartwatch
Watch Type
Semi-Smart
Solid Training Data
Training Data
Maximum Depth
More data
iOS & Android
Phone
iOS & Android
4.4
Rating
4.7
Higher rated
42 hrs
GPS Battery Life
90 hrs
Longer battery
Dual-Band
GPS
Dual-Band
65g
Weight
63g
Lighter
46mm
Case Size
51mm
Yes
Wrist Calls
Yes
Yes
Offline Maps
Yes
Local files only
Offline Music
Spotify/Amazon Music
More music options
10 ATM
Water Resistance
10 ATM
Best Rugged Value
Notable For
Top for Battery Life
Best For
  • You want a rugged AMOLED watch with strong, not extreme, battery life for a fraction of the price
  • 42 hours of GPS runtime is already plenty for your typical outings
  • You're training for multi-day expeditions where battery life measured in days, not hours, actually matters
  • $630 more is worth it for Garmin's max-tier analytics and battery-life specialist reputation
The Full Story

The T-Rex 3 packs a 2,000-nit AMOLED display, dual-band GPS with offline maps, and 27 days of typical battery life into a MIL-STD-810G rugged case, all for a fraction of what Garmin or Suunto charge for similar durability. It won't match a Fenix's ecosystem depth, but as a budget alternative to the outdoor flagships, it's hard to beat.

The Enduro 3 trades AMOLED brightness for a solar-assisted screen and battery life that laps every other watch on this list. Ultra runners and multi-day adventure racers are the actual target market here, not weekend 5K runners.

*Estimated — this model's exact GPS battery life isn't published by the manufacturer. All figures are standard GPS mode, midsize case, no solar boost.

†Estimated — this model launched too recently to have an established customer rating yet.

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