Samsung Galaxy Ring vs Circular Ring Slim
Samsung Galaxy Ring ($399) vs Circular Ring Slim ($259) — side-by-side specs, weight, pros and cons to help you pick the right smart ring.
Spec-by-spec
| Spec | Samsung Galaxy Ring | Circular Ring Slim |
|---|
| Price | $399 | $259 |
| Weight | 3g | 4g |
| Material | Titanium | Titanium |
| Battery | 7 days | 4–5 days |
| Sensors | HR, SpO2, Skin Temp, Accel | PPG, ECG, Temp, SpO2 |
| Weight | 2.3g (size 7) | 3.8g |
| WR | 10ATM | 5ATM |
| Sub | None (free app forever) | Optional (Kira AI) |
Pros & Cons
Samsung Galaxy Ring
- Samsung Health deep integration
- 7-day battery practical
- 10ATM water resistance
- No monthly subscription
- Galaxy AI health coaching
- Sizing kit required before buying
- Android/Samsung ecosystem best
- Fewer third-party app integrations vs Oura
Circular Ring Slim
- ECG detection unique in this price
- No subscription base tier
- Kira AI coaching
- Slim 2mm profile
- 5ATM waterproof
- ECG not FDA-cleared
- Smaller company = support risk
- Kira AI coaching behind paywall
Circular Ring Slim is the better value at $259. If weight matters most, Samsung Galaxy Ring carries lighter at 3g. Both are part of our curated smart ring index — tap through to check current pricing.