If you are looking for a fitness band then you are in the right place. Fitbit fitness bands are packed with lots of features. Those bands help you track daily activity. Now let us see which band you chose.
Fitbit Charge 4

Key features
- Built-in GPS.
- Heart rate tracking.
- Water-resistance to 50m.
- Sleep stages.
- Notifications.
- up to 7-day battery life.
Specification
Sensors and components
- 3-axis accelerometer.
- Optical heart rate monitor.
- GPS.
- Vibration motor.
- NFC chip for Fitbit Pay. (not support Indian banks.) you can find the supported bank list here.
- Altimeter.
Battery
Battery life up to 6 days, up to 5 hours with continuous GPS use. The charge cycle varies with use, settings, and other factors. Charge every few days to ensure you are always tracking. Lithium-polymer power battery. Charge time (0-100%) two hours.
Memory
- Saves 7 days of detailed motion and heart rate data, minute by minute.
- Saves last for 30 days.
- Measures heart rate data at 1-second intervals during exercise tracking and 5-second intervals all other times.
Water Resistance
Water resistance to 50 meters. Dry the band after swimming or getting the band wet. Do not wear Fitbit Charge 4 in a hot tub or sauna.
Environmental Requirements
- Operating temperature: -20°C to 60ºC.
- Maximum operating altitude: 8,535 meters.
Features
- 24/7 Heart rate.
- Resting heart rate.
- Heart rate zone.
- Workout intensity map.
- activate zone minutes.
- Goal-based exercise modes.
- Spotify control.
- Guided breathing sessions.
- Notifications and Apps.
- Sleep stages and score.
- Long battery life.
- Fitbit Pay.
- All-day activity tracking.
- Menstrual health.
- Reminders to move.
- Daily dashboard.
- Clock faces and accessories.
- intuitive touchscreen.
- Wireless sync.
- Mobile app
Fitbit Inspire HR

Key Features
- Grayscale OLED display.
- Up to 5 days of battery life.
- Hear rate.
- 50 meters of water resistance.
Specification
Fitbit Inspire HR sensors
- 3-axis accelerometer.
- Optical heart rate monitor.
Display
- Greyscale OLED.
Battery
Fitbit Inspire HR has up to 5 days of battery life. The charge cycle varies with use. Charge every few days to ensure you are always tracking.
Memory
- Saves 7 days of detailed motion and heart rate data, minute by minute.
- Saves last for 30 days.
- Measures heart rate data at 1-second intervals during exercise tracking and 5-second intervals all other times
Water Resistance
Water resistance to 50 meters. Dry the band after swimming or getting the band wet. Do not wear Fitbit Charge 4 in a hot tub or sauna.
Environmental Requirements
- Operating temperature: -10ºC to 45ºC
- Maximum operating altitude: 8,535 meters.
Features
- 24/7 Heart rate.
- Resting Heart rate.
- Sleep stages.
- 15+ goal-based exercise modes.
- Guided breathing sessions.
- All-day activity.
- Automatic exercise recognition.
- Swimproof+swim tracking.
- Up to 5 days of battery.
- On-screen dashboard.
- All-day calorie burn.
- Notifications (available when your phone is nearby.)
- Timer and stopwatch.
- Intuitive touchscreen display.
- Menstrual health tracking.
- Reminders to moves.
- Clock faces.
- Wireless Sync.
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Thank you for commenting in near future I will update this post.