New prices
$15
– $50
SARUNN ER Smart Ring
Smart Ring is a discreet health and fitness tracker designed for all-day wear. It monitors sleep patterns, heart rate, and blood oxygen levels while counting steps and tracking various activities. With IP68 waterproofing, it withstands water exposure up to 90 meters. The device features a long battery life, magnetic charging, and compatibility with both Android and iOS devices, offering lifetime app access without subscription fees.
- 2 variants
- Sleep monitoring
- Size: 2 variants
Used prices
$15
Price spread
~226%
Across new variants
Customer rating
15 ratings
Available variants (2)
Choose a variant, then open its detail page for seller-specific information.
Variant comparison
Compare prices, availability, and key variant differences in one table.
| Feature | Silver, Size 7 | Rose Gold, Size 8 |
|---|---|---|
| Price | $15.34 | $49.99 |
| Updated | Jun 4, 2026 | — |
| Availability | Available to order | Available to order |
| Size | 7 | 8 |
| Color | Silver | Rose Gold |
Amazon live offers
Offers updated
Top live offer
$15.34
Used from
$15.34
Offer count
1+
| Seller | Condition | Price | Shipping | Updated | |
|---|---|---|---|---|---|
| Third-party seller FBA | Used - Like New | $15.34 | Free shipping | 6/4/26 | View offer |
View all offers on Amazon
Overview
Compare SARUNN ER Smart Ring variants, pricing tiers and key differences.
Learn moreHow variants differ
- Size
- Color
Who each variant is for
- Start with your budget: the visible price spread across variants is about 226%.
- Pick color and finish only after deciding on hardware requirements.
Reviews
2.9 / 5
from 15 ratings
No written reviews yet
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Similar products comparison
| This item | Recommendations | |||||
|---|---|---|---|---|---|---|
Smart Ring with Sleep Monitoring Diverse health monitoring modes
|
Duobuy Smart Ring Intelligent sleep tracker
|
Fitness Tracker Ring Heart rate monitoring
|
Herz P1 24/7 health metrics tracking
|
SARUNN ER 762833974445 Diverse health monitoring
|
Herz P1 Tracks 20+ biometrics
|
|
| Brand | SARUNN ER | Duobuy | Twievo | Herz | SARUNN ER | Herz |
| Model | Smart Ring | P1 | 762833974445 | P1 | ||
| Color | ||||||
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| Price | $22.80 | $53.98 | $69.99 | $59.99 | $24.99 | $59.99 |
| Seller | Amazon | Amazon | Amazon | Amazon | Amazon | Amazon |
| Update | Mar 21, 2026 | May 6, 2026 | Mar 21, 2026 | May 8, 2026 | Apr 8, 2026 | May 1, 2026 |
| batteries | 1 A batteries required. (included) | 1 A batteries required. (included) | 1 Lithium Metal batteries required. (included) | 1 Nonstandard Battery batteries required. (included) | 1 A batteries required. (included) | 1 Nonstandard Battery batteries required. (included) |
| Item Weight | 3.2 ounces | 3.52 ounces | 1 Milligrams | 0.07 Kilograms | 3.52 ounces | 2.39 ounces |
| Package Dimensions | 3.62 x 3.62 x 1.22 inches | 3.66 x 3.58 x 1.26 inches | 3 x 3 x 2 inches | 3.62 x 3.54 x 1.26 inches | 3.03 x 2.99 x 1.65 inches | |
| Standing Screen Display Size | 0.1 Inches | 0.7 Inches | 0.1 Inches | |||
Product confidence
Reviews
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