Fitbit Ace 3

Explore the specs.
What's in the box

Fitbit Ace 3TM

Classic wristband (one size)

Charging cable

Fitbit Ace 3TM

Classic wristband (one size)

Charging cable

Tech Specs
Colors

Black / Sport Red

Cosmic Blue / Astro Green

Device Dimensions1.47 in l x .66 in w x .50 in h
Battery and power

Ace 3 has up to 8 days of battery. Battery life and charge cycles vary with use, settings and other factors; actual results will vary. We recommend charging your tracker every few days to ensure you are always tracking.

  • Battery type: Lithium-polymer
  • Charge time (0-100%): Two hours
  • Radio transceiver: Bluetooth
Memory

Saves 7 days of detailed motion data – minute by minute

Saves daily totals for past 30 days

Environmental requirements

Operating temperature: 14° to 113°F

Maximum operating altitude: 28,000 feet

Sensors and components
  • 3-axis accelerometer
  • Vibration motor
  • Ace 3 includes sensors for heart rate tracking; they are deactivated and cannot be turned on
Display

Touchscreen

PMOLED-Display

Water resistanceAce 3 is swimproof, meaning it's water resistant to 50 meters. After kids go swimming or get the band wet, take the tracker off and dry the band off in order to keep the band clean and dry. See here for more details.
MaterialsThe Ace 3 band is made of a flexible silicone similar to that used in many sport watches and includes a plastic buckle. Learn more about wear and care tips here.
Band size
  • One size: Fits wrist 4.6 in - 6.9 in circumference
Colors

Black / Sport Red

Cosmic Blue / Astro Green

Device Dimensions1.47 in l x .66 in w x .50 in h
Battery and power

Ace 3 has up to 8 days of battery. Battery life and charge cycles vary with use, settings and other factors; actual results will vary. We recommend charging your tracker every few days to ensure you are always tracking.

  • Battery type: Lithium-polymer
  • Charge time (0-100%): Two hours
  • Radio transceiver: Bluetooth
Memory

Saves 7 days of detailed motion data – minute by minute

Saves daily totals for past 30 days

Environmental requirements

Operating temperature: 14° to 113°F

Maximum operating altitude: 28,000 feet

Sensors and components
  • 3-axis accelerometer
  • Vibration motor
  • Ace 3 includes sensors for heart rate tracking; they are deactivated and cannot be turned on
Display

Touchscreen

PMOLED-Display

Water resistanceAce 3 is swimproof, meaning it's water resistant to 50 meters. After kids go swimming or get the band wet, take the tracker off and dry the band off in order to keep the band clean and dry. See here for more details.
MaterialsThe Ace 3 band is made of a flexible silicone similar to that used in many sport watches and includes a plastic buckle. Learn more about wear and care tips here.
Band size
  • One size: Fits wrist 4.6 in - 6.9 in circumference
Requirements

Google account will be required. Learn more.

The Fitbit app is compatible with most popular phones. To set up and use your Fitbit products and services, you must install the Fitbit app on a compatible device running one of the following operating systems:

  • Apple iOS 15 or higher.
  • Android OS 10 or higher. See additional tips for Android phones here.
  • Syncing range: Up to 9m
  • Certain features like smartphone notifications may require Android 10+. Check your device compatibility.
  • Syncing requires Bluetooth LE and Internet connection.

Google account will be required. Learn more.

The Fitbit app is compatible with most popular phones. To set up and use your Fitbit products and services, you must install the Fitbit app on a compatible device running one of the following operating systems:

  • Apple iOS 15 or higher.
  • Android OS 10 or higher. See additional tips for Android phones here.
  • Syncing range: Up to 9m
  • Certain features like smartphone notifications may require Android 10+. Check your device compatibility.
  • Syncing requires Bluetooth LE and Internet connection.