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Fitbit - Sense 2 Advanced Health Smartwatch - Platinum - FB521SRWT-US

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$149.99
Regular price
$249.99
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Condition: Excellent

Fitbit - Sense 2 Advanced Health Smartwatch - Platinum - FB521SRWT-US

Condition
Price
Excellent
$149.99
$249.99
Sold out
Good
$194.99
$249.99
Sold out
Eco-Save
$149.99
$249.99
Sold out
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Fitbit - Sense 2 Advanced Health Smartwatch - Platinum - FB521SRWT-US
Condition: Excellent

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12 Month Warranty

on most devices

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on every device

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most orders ship same day

Description

The Fitbit Sense 2 is a premium smartwatch combining health, fitness, and smart features in a sleek design. It includes advanced sensors and tools for tracking daily activity, sleep trends, and more—all accessible through the Fitbit app.

Key Features:

  • cEDA Sensor – Records electrodermal activity variations, with access to mindfulness tools through the app.

  • Sleep Tracking – Tracks light, deep, and REM sleep stages and summarizes sleep patterns with a Sleep Score.

  • Heart Rate Monitoring – Provides 24/7 heart rate data and notifies users of significant changes. Compatible with ECG app feature (Fitbit app required; not intended for medical use).

  • SpO₂ & Skin Temperature Sensors – Offers overnight oxygen level estimates and skin temperature variation data (not for medical purposes).

  • Built-in GPS – Tracks pace and distance during outdoor activities without needing a phone.

  • Daily Readiness Score – Provides general activity readiness feedback (Fitbit Premium required).

  • Smart Notifications – Displays calls, texts, calendar alerts, and app updates when connected to a smartphone.

  • Google Maps & Wallet – Supports navigation and contactless payments from the wrist.

  • Fitness Tracking – Tracks steps, Active Zone Minutes, calories burned, and more.

  • Water Resistance – Safe for swimming and water-resistant up to 50 meters.

  • Battery Life – Lasts up to 6 days on a full charge; supports fast charging.

Specifications:

  • Model Number: FB521SRWT-US

  • Case Material: Platinum Aluminum

  • Display: AMOLED Touchscreen

  • Band: Soft Silicone (Small and Large sizes included)

  • Battery: Up to 6 days

  • Water Resistance: 5 ATM (50 meters)

  • Connectivity: Bluetooth, Wi-Fi, GPS, NFC

  • Sensors: Heart Rate, cEDA, ECG (via app), SpO₂, Skin Temperature, Altimeter, Accelerometer, Ambient Light

  • Size: 1.58" x 1.58" x 0.45"

  • Weight: Approx. 34 g

  • Compatibility: iOS and Android smartphones

In the Box:

  • Fitbit Sense 2 Smartwatch – Platinum

  • Small & Large Bands

  • Charging Cable

See Specifications
Brand R3NEW
Title Fitbit - Sense 2 Advanced Health Smartwatch - Platinum - FB521SRWT-US
Model Fitbit Sense
Screen Size 40mm
Color Platinum

FAQ

What kind of warranty/guarantee do you offer?

At R3NEW, most transactions are backed by a 1-year warranty, covering technical defects and malfunctions, while every purchase includes a 30-day guarantee. Our warranty is designed to give you peace of mind, ensuring the reliability and longevity of your device.

What's the difference between the conditions? (Excellent, Good, EcoSave)

Great question! Let us break down the difference.

Excellent: Our Excellent condition devices offer a pristine user experience that rivals new units, boasting a flawless appearance with no visible scratches on the display or body. Each device undergoes rigorous testing to ensure it operates like new, giving you peace of mind with a full year of warranty coverage. It’s an ideal choice for those seeking near-new quality without the brand-new price tag

Good: Devices in Good condition are a great compromise between cost and quality. You might find a few minor scratches or slight nicks on the body or display, but these are purely cosmetic and don’t affect the device’s operation. We suggest using a case to bring its external appearance closer to 'like new.' Rest assured, every device meets our strict functional standards and comes with a one-year warranty for functionality

EcoSave: Opt for our EcoSave condition if you want to maximize value while minimizing environmental impact. These devices show visible signs of use, such as scratches or dents, which are purely cosmetic and can often be concealed with a case. Each device has passed our comprehensive functional tests and is backed by a one-year warranty, ensuring it works perfectly for you while also being kind to the planet.

Can I trust R3NEW?

We've sold electronics for over 15 years and are one of top trusted sources of certified refurbished electronics. Plus, with a 30-day guarantee and 12 month warranty, you can shop with peace of mind. If you have any issues at all, just email our support team and we'll help you out.