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Best Buy customers often prefer the following products when searching for 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. Oura Ring Gen3 - Horizon - Size Before You Buy - Size 10 - Black - Front_Zoom
    Top comment

    "Good sleep tracker...It does pick up automatically on activity and has lots of activities that it will track....Excellent & Attractive Activity & Health Monitor...I also like the overall activity tracker, oxygen sensor, etc. I have been able to track my overall wellness much better with my Oura. "

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    Product Description

    The Oura Ring and the Oura Membership ($5.99/mo plus tax) work hand-in-hand to help you feel your best. Monitor your sleep, activity levels, temperature, stress, heart rate, and more with the most trusted Smart Ring. Whether you’re focusing on your fitness or want to improve your sleep, Oura helps you take control of your health — in style.
    See all Fitness Trackers
    Top comment

    "Good sleep tracker...It does pick up automatically on activity and has lots of activities that it will track....Excellent & Attractive Activity & Health Monitor...I also like the overall activity tracker, oxygen sensor, etc. I have been able to track my overall wellness much better with my Oura. "

    See all customer reviews

    Product Description

    The Oura Ring and the Oura Membership ($5.99/mo plus tax) work hand-in-hand to help you feel your best. Monitor your sleep, activity levels, temperature, stress, heart rate, and more with the most trusted Smart Ring. Whether you’re focusing on your fitness or want to improve your sleep, Oura helps you take control of your health — in style.
    See all Fitness Trackers
    See all Fitness Trackers
  2. Amazfit - Band 7 Activity and Fitness Tracker 37.3mm Polycarbonate - Black - Front_Zoom
    Top comment

    "Good tracker for a good price....Good activity tracker. Great size for small wrists. Good price....It’s a nice activity tracker watch...It’s a nice activity tracker watch and looks slim & comfortable."

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    Product Description

    Amazfit Band 7 offers big features in a small package. The Band 7 has a 1.47” display bring you a clear visual experience. When fully charged the device can last up to 18 days with a typical use and up to 9 days with heavy use. The Amazfit Band 7 can assess three health indicators (SPO2, heart-rate and stress) with one click in only 45 seconds. The Band 7 offers 120 sport modes to track useful exercise data like distance, speed, heart rate, etc.
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    Top comment

    "Good tracker for a good price....Good activity tracker. Great size for small wrists. Good price....It’s a nice activity tracker watch...It’s a nice activity tracker watch and looks slim & comfortable."

    See all customer reviews

    Product Description

    Amazfit Band 7 offers big features in a small package. The Band 7 has a 1.47” display bring you a clear visual experience. When fully charged the device can last up to 18 days with a typical use and up to 9 days with heavy use. The Amazfit Band 7 can assess three health indicators (SPO2, heart-rate and stress) with one click in only 45 seconds. The Band 7 offers 120 sport modes to track useful exercise data like distance, speed, heart rate, etc.
    See all Fitness Trackers
    See all Fitness Trackers
  3. WHOOP - 4.0 Health and Fitness Tracker with 12 Month Subscription - Onyx - Front_Zoom
    Top comment

    "The Whoop is top of class fitness & sleep tracker...The Whoop is the ultimate fitness tracker if you’re looking to challenge the limits while focusing on accurate sleep + activity metrics....Much different experience from a fitness tracker."

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    Product Description

    Available for NEW members, WHOOP is a wearable health & fitness coach that keeps track of everything from your sleep patterns to your exercise habits to not just track what you did, but tells you what to do next. WHOOP coaches you through your day with recommendations based on your unique physiology, whether that’s recommending when to go to bed or how much exertion you should take on to meet your fitness goals. Purchase includes an initial 12 month WHOOP membership, 4.0 hardware, onyx SuperKnit band, and wearable + waterproof* battery pack. WHOOP also comes with 24/7 customer service and a warranty in order to make it a worry-free purchase. At the end of your 12 months, you can renew your membership via the WHOOP app.
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    Top comment

    "The Whoop is top of class fitness & sleep tracker...The Whoop is the ultimate fitness tracker if you’re looking to challenge the limits while focusing on accurate sleep + activity metrics....Much different experience from a fitness tracker."

    See all customer reviews

    Product Description

    Available for NEW members, WHOOP is a wearable health & fitness coach that keeps track of everything from your sleep patterns to your exercise habits to not just track what you did, but tells you what to do next. WHOOP coaches you through your day with recommendations based on your unique physiology, whether that’s recommending when to go to bed or how much exertion you should take on to meet your fitness goals. Purchase includes an initial 12 month WHOOP membership, 4.0 hardware, onyx SuperKnit band, and wearable + waterproof* battery pack. WHOOP also comes with 24/7 customer service and a warranty in order to make it a worry-free purchase. At the end of your 12 months, you can renew your membership via the WHOOP app.
    See all Fitness Trackers
    See all Fitness Trackers
  4. Fitbit - Charge 6 Advanced Fitness & Health Tracker - Obsidian - Front_Zoom
    Top comment

    "Good Tracker...Good tracker !! However it doesn’t keep track of stair flights and print on tracker, especially % is tiny...Good activity tracker...Good activity tracker, battery lasts about a week between charges"

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    Product Description

    Give your routine a boost with Fitbit Charge 6 [1] the only fitness tracker with Google built in. Charge 6 has your essentials—like YouTube Music, Google Maps and Google Wallet [2]—plus the fitness tools you need to crush your goals. From staying motivated and tracking your daily progress to tuning in and taking care, running your day and your routine has never been easier.
    See all Fitness Trackers
    Top comment

    "Good Tracker...Good tracker !! However it doesn’t keep track of stair flights and print on tracker, especially % is tiny...Good activity tracker...Good activity tracker, battery lasts about a week between charges"

    See all customer reviews

    Product Description

    Give your routine a boost with Fitbit Charge 6 [1] the only fitness tracker with Google built in. Charge 6 has your essentials—like YouTube Music, Google Maps and Google Wallet [2]—plus the fitness tools you need to crush your goals. From staying motivated and tracking your daily progress to tuning in and taking care, running your day and your routine has never been easier.
    See all Fitness Trackers
    See all Fitness Trackers
  5. Oura Ring Gen3 - Horizon - Size Before You Buy - Size 7 - Rose Gold - Front_Zoom
    Top comment

    "Works great with Natural cycles and no one knows it’s a tracker...Expensive, but cool (and minimal) fitness tracker...Love this ring- great minimalist fitness tracker. Only need to charge every few days. I’m a new mom so it’s helpful to track my sleep/activity and make sure I’m getting enough of both. "

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    Product Description

    The Oura Ring and the Oura Membership ($5.99/mo plus tax) work hand-in-hand to help you feel your best. Monitor your sleep, activity levels, temperature, stress, heart rate, and more with the most trusted Smart Ring. Whether you’re focusing on your fitness or want to improve your sleep, Oura helps you take control of your health — in style.
    See all Fitness Trackers
    Top comment

    "Works great with Natural cycles and no one knows it’s a tracker...Expensive, but cool (and minimal) fitness tracker...Love this ring- great minimalist fitness tracker. Only need to charge every few days. I’m a new mom so it’s helpful to track my sleep/activity and make sure I’m getting enough of both. "

    See all customer reviews

    Product Description

    The Oura Ring and the Oura Membership ($5.99/mo plus tax) work hand-in-hand to help you feel your best. Monitor your sleep, activity levels, temperature, stress, heart rate, and more with the most trusted Smart Ring. Whether you’re focusing on your fitness or want to improve your sleep, Oura helps you take control of your health — in style.
    See all Fitness Trackers
    See all Fitness Trackers
  6. Amazfit - Bip 3 Pro Smartwatch 42.9mm Polycarbonate Plastic - Black - Front_Zoom
    Top comment

    "New fitness tracker watch...I ended up with the GTS 4 mini instead."

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    Product Description

    Amazfit Bip 3 Pro Smartwatch guides you toward a healthier, more active, more connected life. The watch packs a 1.69" super-sized color screen into its slim and light body. The four satellite positioning systems provide faster, more accurate performance tracking. The powerful battery delivers up to 14 days of battery life. Exercise at a higher level with 60+ sports modes and Target Pace function. Swim with your Bip 3 Pro without worry! The Bip 3 Pro offers water-resistance grade of 5 ATM. The Bip 3 Pro tracks a variety of different, helpful health metrics including: SpO2 measurement, 24/7 heart rate monitoring, sleep analysis, stress detection, and menstrual cycle tracking. Compatible with Android 7.0 and above and IOS 12.0 and above device.
    See all Fitness Trackers
    Top comment

    "New fitness tracker watch...I ended up with the GTS 4 mini instead."

    See all customer reviews

    Product Description

    Amazfit Bip 3 Pro Smartwatch guides you toward a healthier, more active, more connected life. The watch packs a 1.69" super-sized color screen into its slim and light body. The four satellite positioning systems provide faster, more accurate performance tracking. The powerful battery delivers up to 14 days of battery life. Exercise at a higher level with 60+ sports modes and Target Pace function. Swim with your Bip 3 Pro without worry! The Bip 3 Pro offers water-resistance grade of 5 ATM. The Bip 3 Pro tracks a variety of different, helpful health metrics including: SpO2 measurement, 24/7 heart rate monitoring, sleep analysis, stress detection, and menstrual cycle tracking. Compatible with Android 7.0 and above and IOS 12.0 and above device.
    See all Fitness Trackers
    See all Fitness Trackers
  7. Oura Ring Gen3 - Heritage - Size Before You Buy - Size 8 - Silver - Front_Zoom
    Top comment

    "So great to keep track of my sleep, activity and overall patterns. And it’s so tiny, no one knows....So glad I switched from my previous fitness tracker, which was a wrist model. The oura ring is much more wearable, attractive, and accurate than any of the other trackers I have worn. "

    See all customer reviews

    Product Description

    The Oura Ring and the Oura Membership ($5.99/mo plus tax) work hand-in-hand to help you feel your best. Monitor your sleep, activity levels, temperature, stress, heart rate, and more with the most trusted Smart Ring. Whether you’re focusing on your fitness or want to improve your sleep, Oura helps you take control of your health — in style.
    See all Fitness Trackers
    Top comment

    "So great to keep track of my sleep, activity and overall patterns. And it’s so tiny, no one knows....So glad I switched from my previous fitness tracker, which was a wrist model. The oura ring is much more wearable, attractive, and accurate than any of the other trackers I have worn. "

    See all customer reviews

    Product Description

    The Oura Ring and the Oura Membership ($5.99/mo plus tax) work hand-in-hand to help you feel your best. Monitor your sleep, activity levels, temperature, stress, heart rate, and more with the most trusted Smart Ring. Whether you’re focusing on your fitness or want to improve your sleep, Oura helps you take control of your health — in style.
    See all Fitness Trackers
    See all Fitness Trackers
  8. Fitbit - Inspire 3 Health & Fitness Tracker - Midnight Zen - Front_Zoom
    Top comment

    "Small helpful watch...Overall it has many different features for well being in a small compact :watch:...Good Value for a compact tracker....This tracker is light and compact. I have found it is pretty accurate in tracking steps and my sleep. "

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    Product Description

    Do what you love and feel your best with Inspire 3. This little health hack on your wrist helps you stay on top of your stress, fitness and sleep--all you have to do is wear it. Track Health Metrics like skin temperature & blood oxygen, plus get daily scores that show how ready you are to workout or how well you're managing stress. Includes a 6-month Fitbit Premium membership1. Fitbit is part of the Google family.
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    Top comment

    "Small helpful watch...Overall it has many different features for well being in a small compact :watch:...Good Value for a compact tracker....This tracker is light and compact. I have found it is pretty accurate in tracking steps and my sleep. "

    See all customer reviews

    Product Description

    Do what you love and feel your best with Inspire 3. This little health hack on your wrist helps you stay on top of your stress, fitness and sleep--all you have to do is wear it. Track Health Metrics like skin temperature & blood oxygen, plus get daily scores that show how ready you are to workout or how well you're managing stress. Includes a 6-month Fitbit Premium membership1. Fitbit is part of the Google family.
    See all Fitness Trackers
    See all Fitness Trackers
  9. Fitbit - Charge 6 Advanced Fitness & Health Tracker - Porcelain - Front_Zoom
    Top comment

    "Great fitness tracker...Purchased for my wife, she loves it. Great small profile and comfortable to wear....I like this fitness tracker. I have small wrists and the two bands allow for proper fit. "

    See all customer reviews

    Product Description

    Give your routine a boost with Fitbit Charge 6 [1] the only fitness tracker with Google built in. Charge 6 has your essentials—like YouTube Music, Google Maps and Google Wallet [2]—plus the fitness tools you need to crush your goals. From staying motivated and tracking your daily progress to tuning in and taking care, running your day and your routine has never been easier.
    See all Fitness Trackers
    Top comment

    "Great fitness tracker...Purchased for my wife, she loves it. Great small profile and comfortable to wear....I like this fitness tracker. I have small wrists and the two bands allow for proper fit. "

    See all customer reviews

    Product Description

    Give your routine a boost with Fitbit Charge 6 [1] the only fitness tracker with Google built in. Charge 6 has your essentials—like YouTube Music, Google Maps and Google Wallet [2]—plus the fitness tools you need to crush your goals. From staying motivated and tracking your daily progress to tuning in and taking care, running your day and your routine has never been easier.
    See all Fitness Trackers
    See all Fitness Trackers
  10. Oura Ring Gen3 - Horizon - Size Before You Buy - Size 6 - Black - Front_Zoom
    Top comment

    "Changed my sleep patterns and activity levels....Although I got it to fit the finger with the smallest knuckle, it still tends to spin, which also hurts the effectiveness. "

    See all customer reviews

    Product Description

    The Oura Ring and the Oura Membership ($5.99/mo plus tax) work hand-in-hand to help you feel your best. Monitor your sleep, activity levels, temperature, stress, heart rate, and more with the most trusted Smart Ring. Whether you’re focusing on your fitness or want to improve your sleep, Oura helps you take control of your health — in style.
    See all Fitness Trackers
    Top comment

    "Changed my sleep patterns and activity levels....Although I got it to fit the finger with the smallest knuckle, it still tends to spin, which also hurts the effectiveness. "

    See all customer reviews

    Product Description

    The Oura Ring and the Oura Membership ($5.99/mo plus tax) work hand-in-hand to help you feel your best. Monitor your sleep, activity levels, temperature, stress, heart rate, and more with the most trusted Smart Ring. Whether you’re focusing on your fitness or want to improve your sleep, Oura helps you take control of your health — in style.
    See all Fitness Trackers
    See all Fitness Trackers
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