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Fire Boltt Nucleus

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  • Smart features (Voice calling, fingerprint sensor)
  • Camera
  • Storage
  • Display

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Last updated: 24 September 2025
Overview Specs Alternatives Videos
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Fire Boltt Nucleus Full Specifications

Key Specs

  • Display

    1.78 Inch | AMOLED | 368 x 448 pixels

  • Battery

    Upto 7 Days battery

  • Features

    Water proof | Receive call | Fitness Tracking

  • Design

    Rectangular, Flat Dial | 36.4 x 44.9 x 11.6 mm | Silicon Strap

Activity Tracker

  • Hours Slept

    Yes

  • Steps

    Yes

  • Heart Rate

    Yes

  • Distance

    Yes

  • Activity/inactivity

    Yes

  • Active Minutes

    Yes

  • Sleep Quality

    Yes

  • Calories Intake/ Burned

    Yes

Additional Features

  • Alarm Clock

    Yes

  • Stopwatch

    Yes

Battery

  • Charging Time

    Up to 160 Hours

  • Battery Life

    Up to 7 Days

Compatibility

  • Compatible OS

    Android, iOS

Connectivity

  • USB Connectivity

    No

  • Bluetooth

    Yes, v5.1

Design

  • Dimensions

    44.9 x 36.4 x 11.6 mm

  • Colours

    Black, Grey, Rose Gold

  • Weight

    49 grams

  • Shape & Surface

    Rectangular, Flat

  • Clock Face

    Digital

  • Strap Material

    Silicon

Display

  • Display Technology

    AMOLED

  • Pixel Density (sharpness)

    326 ppi

  • Screen Resolution

    368 x 448 pixels

  • Screen Size

    1.78 Inch

Features

  • Water Resistance

    Yes, IP Certified IP67

General

  • Brand

    fire boltt

  • Model

    Nucleus

  • Box Contents

    Smart Watch, User Manual, Warranty Card

Notifications

  • Timer

    Yes

  • Alarm

    Yes

  • Text Message

    Yes

  • Incoming Call

    Yes

Sensors

  • Accelerometer

    Yes

Smartphone Remote Features

  • Find My Phone

    Yes

  • Receive Call

    Yes

  • Music Control

    Yes

  • Make Call

    Yes

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