Smart & Connected Life > Smart Watches & Wearables > These Fitness Trackers Are Winning with Epic Battery Life When endurance is a goal in your tech, too By Molly McLaughlin Molly McLaughlin Senior Editor & Content Strategist Molly K. McLaughlin has been a technology editor and writer for over a dozen years. She runs product reviews for Lifewire, overseeing the process from hands-on testing to publishing. lifewire's editorial guidelines Updated on November 8, 2024 We independently evaluate all of our recommendations. If you click on links we provide, we may receive compensation. In This Article View All In This Article Our Top Picks Reviews More Fitness Wearables Reviews Photo: martin-dm / Getty Images You need to wear your activity tracker regularly to get the most out of it, and there is not always the time or opportunity to charge it regularly. Fortunately, many use lower-power displays than smartwatches, meaning you can get weeks and months of battery life rather than a few days. These fitness trackers have the most extended battery life we've seen. Our Top Picks Six Months: SALE Fitbit Zip at Amazon $60 $25 Jump to Review 90 days: Garmin Enduro 3 GPS Smartwatch at Amazon $900 Jump to Review 30 days: Withings ScanWatch 2 at Amazon $350 Jump to Review 20 days: SALE Amazfit T-Rex Ultra Smart Watch 47mm for Men at Amazon $400 $300 Jump to Review Six Months Fitbit Zip PHOTO: Fitbit $60 $25 at Amazon The Zip isn't the obvious first choice if you're considering purchasing a Fitbit device. Its functionality is somewhat limited compared to other options, and it tracks only steps, distance, calories burned, and active minutes. However, it's worth considering if you need extended battery life. This tracker features a replaceable coin battery that lasts four to six months, so you won't have to worry about whether it will last you through the end of the week. 90 days Garmin Enduro 3 GPS Smartwatch PHOTO: Amazon $900 $852 at Amazon The Garmin Enduro 3 GPS Smartwatch was designed for ultra-endurance athletes. It's scratch-resistant, water-resistant to 100 meters deep, and has a built-in flashlight. Best of all, it can last up to 90 days (about three months) on one charge, and it can charge via solar power during the day when there is ample sunlight. 30 days Withings ScanWatch 2 PHOTO: Amazon $350 at Amazon $350 at Best Buy View on Withings.com The Withings ScanWatch 2 has an array of fitness and health features, including ECG tracking, sleep tracking, standard activity tracking, and swim tracking. You can choose from a few finishes, wristband materials, and colors to make the watch your own. Its rechargeable battery lasts about a month (30 days) before needing a charge. 20 days Amazfit T-Rex Ultra Smart Watch 47mm for Men PHOTO: Amazon $400 $300 at Amazon Amazfit's T-Rex Ultra Smart Watch is another super rugged option that can withstand water, mud, and extreme cold and heat. You can take it nearly anywhere, even freediving up to 30m deep. You get all this alongside a 20-day battery life. More Fitness Wearables Reviews Still looking for your next wearable? Here are some other reviews that might help. 5 Things to Consider Before You Buy a Fitness Tracker The Top Fitness Wearables of 2024 Our Favorite Wearable Tech: Smart Rings, Wireless Earbuds, and Watches Amazfit T-Rex 3 Hands-On Review Apple Watch Series 9 vs. Fitbit Charge 6 Was this page helpful? Thanks for letting us know! Get the Latest Tech News Delivered Every Day Subscribe Tell us why! Other Not enough details Hard to understand Submit