Naughtbaby FitElf 3 Pro Smart Ring—Health & Fitness Tracker: Subscription-free health tracking
Meet the FitElf 3 Pro Smart Ring—your new fitness sidekick that doesn't ask for a monthly fee to do its job. It's like having a personal trainer on your finger, quietly keeping tabs on your heart rate, counting every step (even those you take to the fridge), and tracking workouts from treadmill sessions to outdoor adventures. Real-time updates? Yep, it's got those too, making sure you're always in the loop with your fitness goals.
Here's the lowdown on what makes it stand out:
- Round-the-clock wellness tracking that doesn't miss a beat—or a calorie burned.
- Sleep tracking so advanced, it'll tell you more about your Z's than your dreams do.
- A battery that just won't quit, lasting over 10 days so you can forget about constant charging.
- Built tough and waterproof because life (and sweat) happens.
- And for the ladies, it's got your back with menstrual cycle tracking, because health tracking should be inclusive.
Features
- Heart rate and sleep monitoring
- IP68 waterproof rating
- 10-day battery life
- Gender-neutral design
- Subscription-free health tracking
General specs
- Brand: Naughtbaby
- Model: FitElf 3 Pro
- Seller: Amazon
- ID: B0FGXHQ5GL
- Package Dimensions: 3.15 x 3.15 x 1.18 inches
- Item Weight: 3.04 ounces
- batteries: 1 9V batteries required. (included)
- Waterproof Rating: IP68
- Battery Life: 10 days
- First listed by seller: 7/18/25
If you are interested in more details, you can find full information on the seller's page.
Buy on Amazon
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$62.99
Last price update: 7/18/25
Available to order
Shipping options
Delivery to 
United States
United States
Available
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| Brand | Naughtbaby | Naughtbaby | Naughtbaby | Naughtbaby | Mirlray | DustAway |
| Model | FitElf 3 Pro | 3 Pro | 3 Pro | 3 Pro | SR03 | |
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| Price | $62.99 | $62.99 | $62.98 | $62.98 | $29.99 | $39.99 |
| Seller | Amazon | Amazon | Amazon | Amazon | Amazon | Amazon |
| Update | Jul 18, 2025 | Jul 20, 2025 | Jul 20, 2025 | Jul 20, 2025 | Dec 6, 2025 | Dec 6, 2025 |
| Package Dimensions | 3.15 x 3.15 x 1.18 inches | 3.54 x 3.5 x 1.85 inches | 3.62 x 3.46 x 1.89 inches | 3.54 x 3.43 x 1.85 inches | 2.95 x 2.95 x 1.18 inches | 3.15 x 3.15 x 1.18 inches |
| Item Weight | 3.04 ounces | 4.2 ounces | 4.2 ounces | 4.2 ounces | 2.24 ounces | 3 Grams |
| batteries | 1 9V batteries required. (included) | 1 9V batteries required. (included) | 1 9V batteries required. (included) | 1 9V batteries required. (included) | 1 A batteries required. (included) | 1 Nonstandard Battery batteries required. (included) |
| Country of Origin | China | China | China | China | China | |
| Date First Available | May 6, 2025 | July 4, 2025 | May 21, 2025 | |||
Naughtbaby FitElf 3 Pro Subscription-free health tracking
$62.99
