Garmin Fenix 8 vs Garmin Enduro 3

Launched side-by-side at the top of Garmin's outdoor hierarchy, the Garmin Fenix 8 ($999+) and Garmin Enduro 3 ($899) share the Elevate Gen 5 optical heart-rate and ECG sensor, SatIQ dual-frequency GNSS, 32GB TopoActive offline maps, and a built-in multi-LED flashlight.

The Garmin Fenix 8 wins for all-around versatility: it is available in three case sizes (43mm, 47mm, 51mm) with a choice of vibrant AMOLED or Solar MIP screens, and adds EN13319 40-meter dive-rated leakproof inductive buttons plus a built-in speaker and microphone for wrist calls and offline voice commands.

The Garmin Enduro 3 is a specialized weapon for 51mm MIP solar purists and ultramarathoners: by omitting dive hardware and the speaker/mic and pairing an UltraFit nylon strap with a high-efficiency Power Sapphire solar lens, it cuts weight to 63 grams, saves $100, and achieves up to 320 hours of solar GPS tracking.