Fitbit – Charge 5 Advanced Fitness & Health Tracker – Platinum – FB421SRBU

The Fitbit Charge 5 delivers advanced  everyday convenience in a sleek, waterproof design. With a polished Platinum aluminum case, Steel Blue Infinity band, and a bright AMOLED touchscreen, it brings clarity and style to your wellness journey. Whether you’re running, sleeping, Charge 5 gives you the tools to thrive.

Key Features

• AMOLED Touchscreen
  1.04″ vibrant display with auto-adjust brightness, swipe/tap navigation, and optional always-on mode.

• Built-in GPS + GLONASS
  Accurately tracks pace and distance during outdoor workouts—no phone required.

• SpO₂ & Skin Temperature Sensors
  Provides estimated overnight oxygen saturation and skin temperature trends (viewable in the Fitbit app).

• Sleep Tracking
  Measures light, deep, and REM sleep stages for comprehensive rest insights.

• Smart Notifications
  View call, text, app, and calendar alerts from your smartphone.

• Fitbit Pay
  Make secure contactless payments via the built-in NFC chip (Fitbit account required).

• Water Resistance
  Swimproof with 5 ATM rating (up to 50 meters).

• Battery Life
  Up to 7 days on a full charge; recharges in approximately 2 hours.

Product Specifications

• Model Number: FB421SRBU

• Color: Platinum Case with Steel Blue Band

• Display: 1.04″ AMOLED color touchscreen

• Case Material: Aluminum

• Band Material: Silicone Infinity Band (Small & Large sizes included)

• Dimensions: 36.7 × 22.7 × 11.2 mm

• Weight: Approx. 28 g

Connectivity & Compatibility

• Bluetooth Low Energy (BLE)

• Wireless Sync Range: ~9 meters (30 feet)

• Compatibility: iOS 12.2+ and Android 8.0+

• Syncs via the Fitbit app

Battery

• Type: Lithium-polymer

• Battery Life: Up to 7 days

• Charging Time: ~2 hours

• Charging Method: Magnetic USB cable (included)

What’s in the Box

• Fitbit Charge 5 Tracker – Platinum Aluminum Case

• Steel Blue Infinity Bands – Small & Large Sizes

• Magnetic USB Charging Cable