Fitbit Ace 3

Fitbit Ace 3
Brand: Fitbit
Category: Wearables
  • Screen 1.47 inch PMOLED display
  • Battery life up to 8 days
  • Water resistance 5 ATM
  • Sensors 3-axis accelerometer, vibration motor
  • Date March 2021



Physical size 37.33 x 16.76 x 12.7 (L x W x H). Fits wrist 122 mm - 173 mm in circumference.
Material The wristband is made of a flexible, durable elastomer material similar to that used in many sports watches. The tracker and clasp are made with surgical-grade stainless steel.
Charging USB
Battery Lithium Ion
Battery life up to 8 days
Water resistance 5 ATM
Weight 19.3 grams
Display type Touchscreen PMOLED display
Display size 1.47 inch
Display resolution 240 x 240 pixels
Color options Cosmic Blue / Astro Green; Black / Sport Red


Accelerometer Yes
Barometric altimeter No
Compass No
Galvanic skin response No
Geomagnetic No
Gyroscope No
Optical heart rate No
SpO2 No
Temperature No
Beidou No
Ambient light sensor No
Vibration motor Yes
Microphone No
Speakers No

Health & activity tracking

Steps Yes
Distance No
Calories burned No
Sports tracking Active Minutes
Floors No
Sleep Yes
Heart rate No
Stress No
Blood oxygen No
Respiration rate No
UV exposure No
Skin temperature No
Hydration level No
Calorie intake No
Blood pressure No
Glucose No
Other For ages 6+. Bedtime reminders and alarms, Fitbit App: Kid View, timer and stopwatch, move reminders, clock-faces, fun incentives, 1-hour active minutes goal.

Daily smart features

Smartphone notifications Yes
Smartphone music control No
On-board music storage No
Connected pay No
Cellular No
Connectivity Bluetooth, WiFi
Operating system Proprietary
Memory Saves 7 days of detailed motion data – minute by minute. Saves daily totals for the last 30 days


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