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Smallest Activity Tracker

An activity tracker is an excellent device that can help you keep tabs on your fitness level, and the smallest ones are no exception. Whether you're trying to lose weight, gain muscle or just stay in shape, these devices will help you do it. They can also be used to monitor your sleep patterns and other vitals. Browse the top-ranked list of some of the smallest activity trackers below along with associated reviews and opinions.

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  1. Samsung - Galaxy Ring – Size Before You Buy – Size 7 - Titanium Silver - (2024)

    SKU: J3ZYG2ZJ79

    Product Description

    A sleek titanium silver smart ring that tracks health, sleep, and activity with app compatibility and Bluetooth.
    See all Smart Rings
    Your price for this item is $399.99

  2. Samsung - Galaxy Ring – Size Before You Buy – Size 15 - Titanium Silver - (2025)

    SKU: J3ZYG2V6ZR

    Product Description

    A sleek titanium silver smart ring that tracks wellness insights, sleep, and activity with app compatibility.
    See all Smart Rings
    Your price for this item is $399.99

  3. Garmin - Lily 2 Active GPS Smartwatch 33 mm Anodized Aluminum - Jasper Green with Jasper Green Silicone Band - (2024)

    SKU: JXF9YF5FLL

    Product Description

    A stylish jasper green anodized aluminum smartwatch with GPS, health tracking, and a bright touchscreen display.
    See all All Smartwatches
    Your price for this item is $299.99

  4. Garmin - Lily 2 Active GPS Smartwatch 33 mm Anodized Aluminum - Lunar Gold with Bone Silicone Band - (2024)

    SKU: JXF9YF5FGP

    Product Description

    An elegant lunar gold smartwatch with bone silicone band, featuring built-in GPS, health tracking, and notifications.
    See all All Smartwatches
    Your price for this item is $299.99

  5. Garmin - Lily 2 Active GPS Smartwatch 33 mm Anodized Aluminum - Silver with Purple Jasmine Silicone Band - (2024)

    SKU: JXF9YF5FGT

    Product Description

    A stylish silver smartwatch with purple jasmine silicone band, built-in GPS, health tracking, and touchscreen display.
    See all All Smartwatches
    Your price for this item is $299.99

  6. Amazfit - Band 7 Activity and Fitness Tracker 37.3mm Polycarbonate - Black - (2022)

    SKU: J3R8W4P7WG

    value for moneysmall and compactgood for daily use...Mini T-rex...He’s 12. It is basically the mini version of the T-Rex. Perfect

    Product Description

    A black polycarbonate fitness tracker with 1.47" display, 18-day battery, and 120 sport modes.
    See all All Smartwatches
    Your price for this item is $49.99

  7. WHOOP - 5.0 Peak - Health and Fitness Tracker - 12-Month Membership - Obsidian - (2025)

    SKU: J3GW3TK8GT

    Product Description

    An advanced obsidian wristband that delivers personalized health insights, sleep tracking, and 24/7 fitness monitoring.
    See all Fitness Trackers
    Your price for this item is $239.00

  8. Garmin - Forerunner 265S GPS Smartwatch 42 mm Fiber-reinforced polymer - Black - (2023)

    SKU: JXF9YF4J5P

    Product Description

    A black fiber-reinforced polymer smartwatch with AMOLED touchscreen, multi-band GPS, and advanced health tracking features.
    See all All Smartwatches
    Your price for this item is $449.99

  9. Garmin - vívosmart 5 Smart Fitness Tracker + Heart Rate Small/Medium - White - (2022)

    SKU: JXF9YFK5CF

    Product Description

    A white plastic fitness tracker offering heart rate monitoring, sleep tracking, and smart notifications for daily health insights.
    See all All Smartwatches
    Your price for this item is $149.99

  10. Garmin - vívosmart 5 Smart Fitness Tracker + Heart Rate Small/Medium - Cool Mint - (2023)

    SKU: JXF9YFK523

    Product Description

    A cool mint plastic fitness tracker offering heart rate monitoring, sleep tracking, and smart notifications.
    See all All Smartwatches
    Your price for this item is $149.99
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In-store pricing may vary. Prices and offers are subject to change. © 2026 Best Buy. All rights reserved. BEST BUY, the BEST BUY logo, the tag design, and MY BEST BUY are trademarks of Best Buy and its affiliated companies.