Fitbit FB521GLBM-US Advanced Health and Fitness Smartwatch: All-day stress detection with cEDA
Sleep like a baby with features that sound like they're from a luxury spa: a Sleep Profile that's all about you, detailed sleep stages, a Sleep Score to brag about, and a smart wake alarm that won't jolt you awake like your old alarm clock. And for those days when you're more couch potato than gym rat, it's got built-in GPS, a workout intensity map (because getting lost is so last year), and a Daily Readiness Score to tell you whether you're ready to conquer the world or just Netflix. With over 40 ways to track your sweat sessions and a design that laughs in the face of water (up to 50 meters, that is), it's ready for anything.
Wear it all day, every day, and never miss a beat—or a call, text, or notification, thanks to Bluetooth connectivity. Customize it to your heart's content with clock faces that match your mood, pay with a flick of your wrist using Fitbit Pay, and ask Alexa for the weather (or to tell you a joke). The battery? It lasts over 6 days, because who has time to charge every night? Plus, snag a 6-month Premium membership for deep dives into your health data. Because knowledge is power, right?
General specs
- Brand: Fitbit
- Model: FB521GLBM-US
- Seller: Amazon
- Product Dimensions: 1.57 x 0.47 x 1.57 inches; 1.3 ounces
- Batteries: 1 Lithium Ion batteries required. (included)
- Date First Available: September 23, 2022
- Manufacturer: Fitbit Inc
- Country of Origin: China
If you are interested in more details, you can find full information on the seller's page.
Buy on Amazon
#publicidad
Shipping options
United States
Comparison with similar products
| This item | Recommendations | |||||
|---|---|---|---|---|---|---|
Fitbit FB521GLBM-US All-day stress detection with cEDA
|
Fitbit 6514034 All-day stress detection with cEDA
|
Fitbit Sense 2 All-day stress detection with cEDA
|
GPS Fitness Tracker Smartwatch Heart rate monitor
|
Smart Watch with Health Monitoring Blood pressure monitoring
|
Bluetooth Smartwatch All Day Monitoring Of Heart Rate
|
|
| Brand | Fitbit | Fitbit | Fitbit | SCIONE | SACOSDING | |
| Model | FB521GLBM-US | 6514034 | Sense 2 | |||
| Color | ||||||
| Rating |
|
|
|
|
|
|
| Price | $199.95 | $199.95 | $199.95 | $119.53 | $76.06 | $49.99 |
| Seller | Amazon | Amazon | Amazon | Joom | Joom | Gshopper |
| Update | June 13, 2025 | June 14, 2025 | June 12, 2025 | June 8, 2025 | June 9, 2025 | July 25, 2024 |
| Product Dimensions | 1.57 x 0.47 x 1.57 inches; 1.3 ounces | 1.57 x 0.47 x 1.57 inches; 7.05 ounces | 1.57 x 0.47 x 1.57 inches; 6.74 ounces | |||
| Batteries | 1 Lithium Ion batteries required. (included) | 1 LR44 batteries required. (included) | 1 Lithium Ion batteries required. (included) | |||
| Date First Available | September 23, 2022 | September 23, 2022 | September 23, 2022 | |||
| Manufacturer | Fitbit Inc | Fitbit Inc | Fitbit Inc | |||
| Country of Origin | China | China | China | |||
Advanced Health and Fitness Smartwatch
Reviews
Felix Wiśniewski
June 8, 2025
Lace
June 5, 2025