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| Item number: CIEN3-100772142 Manufacturer no.: FB424BKBK EAN/GTIN: 810073610064 |
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 | Do what you love and feel your best.
Active Zone Minutes tracks time spent in target heart rate zones. Know when you're in fat burn, cardio, or peak zones so you can adjust your effort to match your goals.
Get daily scores to help manage stress. Stress Management Score and guided breathing sessions can teach you healthier ways to handle stress.
Track your sleep metrics for better sleep. Better energy starts with better rest. Track your Sleep Score, light, deep and REM sleep, sleeping heart rate and see how consistent your schedule is.
Keep an eye on your well-being. The Fitbit app is like a control panel for your body. By watching for changes in your resting heart rate, blood oxygen, skin temperature & more, you can get to know your body and do what’s best for it.
Light as air. That's how it feels to wear this slim, smooth silicone band More information: Features | Heart rate monitor | Yes |  | Active minutes | Yes |  | Calories burned | Yes |  | Distance travelled | Yes |  | Hours slept | Yes |  | Quality of sleep | Yes |  | Workout tracking | Yes |  | Position location | Yes |  | Heart rate sensor type | Optical |  | Vibrating motor | Yes |  | Blood oxygen sensor | Yes |  | Accelerometer | Yes |  | Find my phone function | Yes |  | Call notifications | Yes |  | Date indication | Yes |  | SMS notifications | Yes |  | Do not disturb function | Yes |  | Alarm clock | Yes |  | Memory capacity | 7 day(s) |  | Daily totals memory capacity | 30 day(s) | Ports & interfaces | Bluetooth | Yes |  | Bluetooth Low Energy (BLE) | Yes | Operational conditions | Operating temperature (T-T) | 0 - 40 °C | Design | Device type | Armband activity tracker |  | Form factor | Rectangle |  | Product colour | Black |  | Band colour | Black |  | Band material | Silicone |  | Band size | S/L |  | Suggested gender | Unisex |  | Adjustable | Yes |  | Wrist size range | 137 - 221 mm |  | Minimum strap length | 137 mm |  | Maximum strap length | 221 mm |  | Waterproof | Yes |  | Waterproof up to | 50 m |  | Removable strap | Yes |  | Country of origin | Vietnam | Weight & dimensions | Weight | 152 g |  | Width | 36 mm |  | Depth | 91 mm |  | Height | 10 mm |  | Thickness | 91 mm |  | Package width | 214 mm |  | Package depth | 176 mm |  | Package height | 217 mm | Performance | Touchscreen | Yes |  | Colour display | Yes | Power | Battery life | 10 day(s) |  | Battery technology | Lithium Polymer (LiPo) |  | Rechargeable battery | Yes |  | Charging time | 2 h | System requirements | Mobile operating systems supported | Android, iOS | Packaging content | Number of bands included | 2 |  | USB charger included | Yes | Logistics data | Harmonized System (HS) code | 8517620000 |
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