Best Battery Autonomy for All Smart Devices

All Smart Devices for the marathon man (figuratively speaking). You have to keep going all day long and those devices are the most likely to last as long as you do.

Most Endurance US$290 - US$899

If finding a power outlet during the day is cramping your style, the following all smart devices will serve you best. Be warned: this list was built with absolutely no regards for price. If you're strapped for cash, scroll down to the budget section for the longest lasting models at below-average prices.

Most Endurance under $400

Need something cheaper? No worries; here are the lonest lasting all smart devices priced below average. Some tweaking and scrifices (like tuning the WiFi off to turning the screen's luminosity down) might be required but you'll have options.

There might be some overlap with the list above, but everything down here is considered budget-friendly.

  • #1, Laptops (under $525)
    Acer Spin 11-inch Convertible Chromebook

    Acer Spin 11-inch Convertible Chromebook from US$300;
    ~$388 with accessories

    Device Ratings

    by Laptops standards

    Bang for the Buck3/5
    Versatility for the Price4.5/5
    Power0.5/5
    Storage0.5/5
    Portability4.5/5
    Autonomy5/5

    by Tablets standards

    Bang for the Buck4/5
    Versatility for the Price4/5
    Power3.5/5
    Storage4/5
    Portability2/5
    Autonomy5/5

    by Netbooks standards

    Bang for the Buck4.5/5
    Versatility for the Price5/5
    Power3/5
    Storage4.5/5
    Portability4/5
    Autonomy5/5

    by All Smart Devices standards

    Bang for the Buck2.5/5
    Versatility for the Price4.5/5
    Power0.5/5
    Storage1/5
    Portability4.5/5
    Autonomy5/5

    by Large Tablets standards

    Bang for the Buck4/5
    Versatility for the Price4/5
    Power3/5
    Storage3.5/5
    Portability3/5
    Autonomy5/5
    Specs
    Processor: MediaTek MT8183
    Graphics: ARM Mali-G72
    Memory: 4.00 GB
    Storage: 64.00 GB
    Screen Size: 11.6"
    Screen Resolution: 1366×768
    Dimensions: 29.00 x 20.60 x 1.88 cm
    Weight: 1.200 kg

    Pricing Accuracy

    Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on the Best Buy site at the time of purchase will apply to the purchase of this product. ×
  • #1, Tablets (under $450)
    Lenovo IdeaPad Duet 10.1" Touchscreen 2-in-1 Chromebook Guillaume's pick; 8 times!

    Lenovo IdeaPad Duet 10.1" Touchscreen 2-in-1 Chromebook from US$2409%, Best price yet!
    ~$330 with accessories

    Device Ratings

    by Tablets standards

    Bang for the Buck5/5
    Versatility for the Price5/5
    Power2/5
    Storage5/5
    Portability4/5
    Autonomy4.5/5

    by All Smart Devices standards

    Bang for the Buck3.5/5
    Versatility for the Price5/5
    Power0.5/5
    Storage1/5
    Portability5/5
    Autonomy5/5

    by Large Tablets standards

    Bang for the Buck5/5
    Versatility for the Price5/5
    Power2/5
    Storage5/5
    Portability5/5
    Autonomy4.5/5
    Specs
    Processor: MediaTek Helio P60T
    Graphics: ARM Mali-G72
    Memory: 4.00 GB
    Storage: 128.00 GB
    Screen Size: 10.1"
    Screen Resolution: 1920×1200
    Dimensions: 23.98 x 15.98 x 0.74 cm
    Weight: 0.449 kg
    from US$237.56

    Pricing Accuracy

    Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on the retailer's site at the time of purchase will apply to the purchase of this product. ×
  • #2, Tablets (under $450)
    Amazon Fire HD 10 Tablet (2019) Guillaume's pick; 27 times!

    Amazon Fire HD 10 Tablet (2019) from US$160;
    ~$290 with accessories

    Device Ratings

    by Tablets standards

    Bang for the Buck3/5
    Versatility for the Price4.5/5
    Power1.5/5
    Storage2.5/5
    Portability3.5/5
    Autonomy4/5

    by All Smart Devices standards

    Bang for the Buck0.5/5
    Versatility for the Price4.5/5
    Power0.5/5
    Storage0.5/5
    Portability4.5/5
    Autonomy4.5/5

    by Large Tablets standards

    Bang for the Buck2/5
    Versatility for the Price4.5/5
    Power1/5
    Storage1.5/5
    Portability4.5/5
    Autonomy3.5/5
    Specs
    Processor: MediaTek MT8183
    Graphics: ARM Mali-G72
    Memory: 2.00 GB
    Storage: 32.00 GB
    Screen Size: 10.1"
    Screen Resolution: 1920×1200
    Dimensions: 26.20 x 15.90 x 0.98 cm
    Weight: 0.504 kg

    Pricing Accuracy

    Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on the Best Buy site at the time of purchase will apply to the purchase of this product. ×
  • #3, Tablets (under $450)
    Amazon Fire HD 10 Tablet (2019, Kids Edition)

    Amazon Fire HD 10 Tablet (2019, Kids Edition) from US$210;
    ~$350 with accessories

    Device Ratings

    by Tablets standards

    Bang for the Buck2/5
    Versatility for the Price1/5
    Power1.5/5
    Storage2.5/5
    Portability0.5/5
    Autonomy4/5

    by All Smart Devices standards

    Bang for the Buck0.5/5
    Versatility for the Price1/5
    Power0.5/5
    Storage0.5/5
    Portability3/5
    Autonomy4.5/5

    by Large Tablets standards

    Bang for the Buck1/5
    Versatility for the Price1/5
    Power1/5
    Storage1.5/5
    Portability0.5/5
    Autonomy3.5/5
    Specs
    Processor: MediaTek MT8183
    Graphics: ARM Mali-G72
    Memory: 2.00 GB
    Storage: 32.00 GB
    Screen Size: 10.1"
    Screen Resolution: 1920×1200
    Dimensions: 29.20 x 20.60 x 2.60 cm
    Weight: 0.778 kg

    Pricing Accuracy

    Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on the Best Buy site at the time of purchase will apply to the purchase of this product. ×
  • #8, Laptops (under $525)
    Lenovo S330 14-inch Chromebook - Business Black

    Lenovo S330 14-inch Chromebook - Business Black from US$280;
    ~$370 with accessories

    Device Ratings

    by Laptops standards

    Bang for the Buck0/5
    Versatility for the Price3/5
    Power0/5
    Storage0/5
    Portability2.5/5
    Autonomy4/5

    by Netbooks standards

    Bang for the Buck0.5/5
    Versatility for the Price3/5
    Power1/5
    Storage1.5/5
    Portability0.5/5
    Autonomy2/5

    by All Smart Devices standards

    Bang for the Buck0/5
    Versatility for the Price3/5
    Power0/5
    Storage0.5/5
    Portability3/5
    Autonomy3.5/5
    Specs
    Processor: MediaTek MT8173
    Graphics: ARM PowerVR GX6250
    Memory: 4.00 GB
    Storage: 32.00 GB
    Screen Size: 14"
    Screen Resolution: 1366×768
    Dimensions: 32.57 x 23.24 x 2.08 cm
    Weight: 1.501 kg

    Pricing Accuracy

    Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on the Best Buy site at the time of purchase will apply to the purchase of this product. ×
  • #4, Tablets (under $450)
    Samsung Galaxy Tab A 8-inch

    Samsung Galaxy Tab A 8-inch from US$160;
    ~$290 with accessories

    Device Ratings

    by Tablets standards

    Bang for the Buck1.5/5
    Versatility for the Price4.5/5
    Power0.5/5
    Storage2.5/5
    Portability4.5/5
    Autonomy1.5/5

    by All Smart Devices standards

    Bang for the Buck0/5
    Versatility for the Price4.5/5
    Power0/5
    Storage0.5/5
    Portability5/5
    Autonomy3/5

    by Small Tablets standards

    Bang for the Buck5/5
    Versatility for the Price5/5
    Power1.5/5
    Storage5/5
    Portability3.5/5
    Autonomy5/5
    Specs
    Processor: Qualcom Snapdragon 429
    Graphics: Qualcom Adreno 504
    Memory: 2.00 GB
    Storage: 32.00 GB
    Screen Size: 8"
    Screen Resolution: 1280×800
    Dimensions: 21.00 x 12.44 x 0.80 cm
    Weight: 0.345 kg

    Pricing Accuracy

    Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on the Best Buy site at the time of purchase will apply to the purchase of this product. ×

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This list fluctuates constantly as I add new devices, retire old ones or when they go on sale so go ahead: bookmark this page and come back often.