I biked 11 miles with the Garmin Venu 4 vs Suunto Vertical 2 — and there's a clear winner

Close-up of the Garmin Venu 4 next to the Suunto Vertical 2.

I biked 11 miles with the Garmin Venu 4 on one wrist and the Suunto Vertical 2 on the other to compare fitness tracking accuracy.

Both of these smartwatches are new models for 2025 and boast bright, AMOLED touchscreens paired with physical buttons, long-lasting batteries, multi-band GPS, and built-in LED flashlights. They each also support a huge number of workout types.