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Product Reviews

Best Fitness Wearables & Trackers 2026

Smartwatches, HR monitors, and recovery trackers for data-driven athletes. We compare accuracy, battery life, and features to help you choose the right device.

Medische disclaimer: De informatie op deze pagina is uitsluitend bedoeld voor educatieve doeleinden en vormt geen medisch advies, diagnose of behandeling. Raadpleeg altijd een arts of gekwalificeerde zorgverlener voordat je supplementen gebruikt of je leefstijl aanpast.

Best Accuracy

Polar H10

Polar

€89
4.8
Clinical-grade accuracy
Pairs with any device
Buy Now

Fenix 7

Garmin

€699
4.8
Best-in-class GPS
Solar charging
Buy Now
Best Overall

Forerunner 265

Garmin

€449
4.7
Excellent HR accuracy
13-day battery
Buy Now

Apple Watch Series 9

Apple

€429
4.6
Best ecosystem
ECG
Buy Now

Oura Ring Gen 3

Oura

€349
4.5
Best sleep tracking
Discreet design
Buy Now

Buying Guide

Smartwatch vs. Chest Strap vs. Ring

Smartwatches (Garmin, Apple Watch) offer the best all-round experience with GPS, HR monitoring, and smart features. Best for most people. Chest straps (Polar H10) offer the highest HR accuracy — essential for precise Zone 2 training. Pairs with any smartwatch or app. Smart rings (Oura) excel at sleep tracking and recovery metrics. More discreet than a watch. No GPS.

What Matters for Zone 2 Training

For Zone 2 training, HR accuracy is critical. Optical wrist sensors can be off by 5-15 bpm during exercise — enough to put you in the wrong zone. Best options for Zone 2: 1. Polar H10 chest strap (most accurate) 2. Garmin watch + Polar H10 (best combination) 3. Garmin Forerunner 265 (best wrist-only accuracy)