Between the Enduro 3 and Fenix 8 Solar (47mm), the Enduro 3 comes out ahead in gps mode and smartwatch mode, while the Fenix 8 Solar (47mm) wins on ecg. Overall, the Enduro 3 scores 78.2 and the Fenix 8 Solar (47mm) scores 58.4 on our Mars Score.
Which should you buy?
The Enduro 3 is the clear pick on raw spec strength, leading by 19.8 points on the Mars Score. The margin is wide enough that the underdog only makes sense if its individual strengths line up with what you specifically need.
Pick the Enduro 3 if you care most about gps mode and smartwatch mode. The biggest gaps in its favor are gps mode, smartwatch mode.
Pick the Fenix 8 Solar (47mm) if you care most about ecg. Its strongest claims are ecg.
Both ship with comparable multi-band gps, solar charging, so those specs don't separate the two — focus on the differences below.
Bottom line: the Enduro 3 is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Why Garmin - Enduro 3 wins
- ▲GPS mode — 207.69% more. 320 h vs 104 h.
- ▲Smartwatch mode — 28.57% more. 36 days vs 28 days.
Why Garmin - Fenix 8 Solar (47mm) wins
- ▲Has ECG.
Spec comparison
GPS & Sensors
| Spec | Garmin - Enduro 3 | Garmin - Fenix 8 Solar (47mm) |
|---|---|---|
| Multi-band GPS | true | true |
| Barometric altimeter | true | true |
| Heart rate | true | true |
| ECG | false | truelead |
| Pulse Ox | true | true |
Battery
| Spec | Garmin - Enduro 3 | Garmin - Fenix 8 Solar (47mm) |
|---|---|---|
| Smartwatch mode | 36 dayslead | 28 days |
| GPS mode | 320 hlead | 104 h |
| Solar charging | true | true |
Design
| Spec | Garmin - Enduro 3 | Garmin - Fenix 8 Solar (47mm) |
|---|---|---|
| Case size | 51 mmlead | 47 mm |
| Weight | 63 glead | 82 g |
| Water resistanceⓘ | 10 ATM | 10 ATM |
Frequently asked
Spec-level deep dives
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