Side-by-Side
Key features at a glance across top devices in each category.
Smartwatches
Top smartwatches compared on key health features, battery, and cost.
| Feature | Apple Watch S10 | Garmin Fenix 8 | Samsung Galaxy Watch 7 | Fitbit Charge 6 |
|---|---|---|---|---|
| Price (from) | $399 | $799 | $299 | $159 |
| ECG | ✓ | ✗ | ✓ | ✗ |
| Blood Oxygen (SpO2) | ✓ | ✓ | ✓ | ✓ |
| GPS | ✓ | ✓ Multi-band | ✓ | Phone GPS |
| Battery Life | 18–36 hrs | Up to 29 days | 40 hrs | 7 days |
| Subscription Required | No | No | Optional | $9.99/mo |
| Sleep Tracking | Good | Excellent | Good | Good |
| Best For | Apple users | Athletes / Outdoors | Android users | Budget tracking |
Sleep Trackers
How the top dedicated sleep tracking devices stack up.
| Feature | Oura Ring Gen 4 | Eight Sleep Pod 4 | Withings Sleep Analyzer | Garmin Index Sleep |
|---|---|---|---|---|
| Price (from) | $349 + sub | $1,995 + sub | $129 | Included w/ watch |
| Form Factor | Ring | Mattress Cover | Under-mattress pad | Wrist |
| Sleep Stage Detection | ✓ | ✓ | ✓ | ✓ |
| Temperature Regulation | ✗ | ✓ Active | ✗ | ✗ |
| HRV Tracking | ✓ | ✓ | Limited | ✓ |
| Subscription Required | $5.99/mo | $199/yr | No | No |
| Worn During Sleep | Yes (ring) | No | No | Yes (watch) |