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Shadow Grey Graphite aluminium smartwatch with AMOLED touchscreen

Google

Google Fitbit Sense 2 Smartwatch Shadow Grey Graphite GPS

SKU CH-WVR4-31M3R

An advanced health and fitness smartwatch with built-in GPS, 24/7 heart-rate tracking, stress and sleep monitoring, ECG and SpO2 compatibility, Bluetooth 5.0 calling, water resistance to 50 meters.

  • ColorGray
  • TypeWatch
  • ConnectivityNot Applicable
  • BluetoothBluetooth 5.0
  • HeightInches
  • WidthInches
  • Tracks stress with cEDA body-response sensor
  • Monitors heart rhythm via ECG app where available
  • Built-in GPS and GLONASS for phone-free workouts
  • Water resistant to 50 metres for swim tracking
  • 6+ day battery life depending on use

Advanced health smartwatch for daily wellness

The Fitbit Sense 2 is an advanced health and fitness smartwatch in Shadow Grey with Graphite aluminium. It supports stress tracking, sleep analysis, continuous heart-rate monitoring and built-in GPS workouts. Smartphone notifications and Bluetooth calling keep you connected without reaching for your phone. The AMOLED touchscreen provides clear data at a glance.

50-metre water resistance and multi-day power

Water resistance to 50 metres allows swimming and showering without removal. The battery delivers six-plus days of use depending on settings and activity. Built-in speaker and microphone enable Bluetooth 5.0 calls directly from the wrist. Continuous sensors including cEDA body-response tracking run throughout the day with minimal charging interruption.

Lightweight aluminium case

At 0.08 lbs the aluminium case stays light during sleep and exercise. NFC enables contactless payments where supported. ECG app, EDA Scan app and SpO2 tracking are available where regional regulations permit. Skin-temperature variation tracking adds overnight insight. Setup requires a Google account, internet access and a compatible Android or iOS device via the Google Health app.

Highlights

  • Tracks stress with cEDA body-response sensor
  • Monitors heart rhythm via ECG app where available
  • Built-in GPS and GLONASS for phone-free workouts
  • Water resistant to 50 metres for swim tracking
  • 6+ day battery life depending on use

Specifications

BrandGoogle
ModelFB521ITR
ColorGray
TypeWatch
ConnectivityNot Applicable
BluetoothBluetooth 5.0
HeightInches
WidthInches
DepthInches
Weight0.08 lbs

Questions about this item

How do I set up the Fitbit Sense 2 with my phone for the first time?

Install the Google Health app, sign in with a Google account, enable Bluetooth 5.0 on the phone and follow the in-app pairing steps; the watch syncs over Bluetooth LE and requires internet access to complete setup.

Which parts will need replacing after extended daily wear?

The silicone band and the charging cable are the only consumable accessories; the sealed 50-meter water-resistant case and AMOLED touchscreen have no user-serviceable components.

What limits battery life first when I use GPS and continuous heart-rate tracking together?

Running built-in GPS with 24/7 heart-rate tracking drains the 6+ day battery fastest; expect noticeably shorter runtime during long outdoor workouts with both sensors active.

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