Garmin Fénix 8 AMOLED 47 mm vs Garmin Instinct 3 Solar 50 mm
Garmin Fénix 8 AMOLED 47 mm (47 h GPS, 59 g) vs Garmin Instinct 3 Solar 50 mm (60 h GPS, 60 g). Side-by-side spec comparison: battery, weight, maps, multi-band GPS and price. Which GPS watch should you buy?
GarminGarmin Fénix 8 AMOLED 47 mmGarmin's flagship multisport watch: AMOLED display, topo maps, multi-band GPS, LED flashlight, speaker and microphone. 47 h in GPS mode (35 h multi-band) and 16 days in smartwatch mode. Rugged case with sapphire glass for mountain ultras and multi-day adventures.
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GarminGarmin Instinct 3 Solar 50 mmUltra-rugged GPS watch with solar charging: up to 40 days in smartwatch mode (unlimited with sun), 60 h GPS and 34 h multi-band. Military-standard case, LED flashlight and dual-frequency GPS. For those who prioritise toughness and battery over onboard maps on their mountain outings.
View on AmazonSpec-by-spec comparison
| Spec | Garmin Fénix 8 AMOLED 47 mm | Garmin Instinct 3 Solar 50 mm |
|---|---|---|
| GPS battery | 47 h | 60 h |
| Multi-band battery | 35 h | 34 h |
| Smartwatch | 16 days | 40 days |
| Weight | 59 g | 60 g |
| Maps | ✓ | – |
| Multi-band | ✓ | ✓ |
| Music | ✓ | – |
| Display | AMOLED | MIP |
| Price | Flagship | Mid-range |
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.
Verdict
For maximum autonomy on long ultras, Garmin Instinct 3 Solar 50 mm lasts longer in GPS mode. If you want the lightest watch on your wrist, go for Garmin Fénix 8 AMOLED 47 mm. Only Garmin Fénix 8 AMOLED 47 mm brings onboard topo maps for navigation. On budget, Garmin Instinct 3 Solar 50 mm is the more affordable option.