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Smartwatch Batteries

Grab a replacement battery or screen and bring your smartwatch back to life!

iFixit has you covered with parts, tools, and free repair guides. Repair with confidence! All our replacement parts are tested to rigorous standards and backed by our industry-leading warranty.

Apple Watch (42 mm, Original & Series 1) Replacement Battery / New / Fix Kit
Apple Watch (42 mm, Original & Series 1) Replacement Battery

Replace a 245 mAh battery compatible with 2 mm Original or Series 1 Apple Watch models A1554 and A1803. 3.78 Volts (V). Battery model A1579.

From $16.99
Apple Watch (38 mm, Original & Series 1) Replacement Battery / New / Fix Kit
Apple Watch (38 mm, Original & Series 1) Replacement Battery

Replace a 205 mAh battery compatible with Apple Watch 38 mm Original and Series 1 Models A1553 and A1802. 3.8 Volts (V). Battery Model A1578.

From $16.99
Apple Watch (42 mm Series 2) Replacement Battery / Fix Kit
Apple Watch (42 mm Series 2) Replacement Battery

Replace a battery compatible with Apple Watch 42 mm Series 2 Models A1758 and A1817 smartwatches.

From $16.99
Apple Watch (38 mm Series 3 Cellular) Replacement Battery / Fix Kit
Apple Watch (38 mm Series 3 Cellular) Replacement Battery

Replace a 279 mAh battery compatible with Apple Watch 38 mm Series 3 Cellular Models A1890, A1860, and A1889. 1.07 Watt Hours (Wh). 3.82 Volts (V). Battery model A1848. I...

From $23.99
Samsung Galaxy Watch (46mm) Replacement Battery
Samsung Galaxy Watch (46mm) Replacement Battery

Replace a dead or malfunctioning battery in a 46 mm Samsung Galaxy Watch.

$29.99
Apple Watch (38 mm Series 2) Replacement Battery / Fix Kit
Apple Watch (38 mm Series 2) Replacement Battery

Replacement battery for the 38 mm Series 2 Apple Watch models A1757 and A1816. 3.77 Volts (V). Battery model A1760.

From $16.99
Apple Watch (38 mm Series 3 GPS) Replacement Battery / Fix Kit
Apple Watch (38 mm Series 3 GPS) Replacement Battery

Replace a 262 mAh battery compatible with 38 mm GPS model Series 3 Apple Watch model A1858. 3.81 Volts (V). 1.0 Watt Hours (Wh). Battery model A1847.

From $19.99
Apple Watch (42 mm Series 3 Cellular) Replacement Battery / Fix Kit
Apple Watch (42 mm Series 3 Cellular) Replacement Battery

Replace a 352 mAh battery compatible with Apple Watch 42 mm Cellular Series 3 models A1892, A1861, A1891, and A1892. 3.82 Volts (V). 1.34 Watt Hours (Wh). Battery model A...

From $23.99
Apple Watch (42 mm Series 3 GPS) Replacement Battery / Fix Kit
Apple Watch (42 mm Series 3 GPS) Replacement Battery

Replace a 342 mAh battery compatible with the 42 mm GPS model Series 3 Apple Watch Model A1859. 1.31 Watt Hours (Wh). 3.82 Volts (V). Battery model A1875.

From $19.99
Fitbit Blaze Replacement Battery
Fitbit Blaze Replacement Battery

Replace a 170 mAh battery compatible with the Fitbit Blaze smartwatch. 3.7 Volts (V).

$19.99
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Device Info

A smartwatch is a computerized wristwatch with functionality enhanced beyond timekeeping, often with features comparable to a PDA.

It is a wrist worn timepiece that does more than just tell the time. It has an operating system and can run apps. It may also include GPS, Bluetooth connectivity, WiFi capability and more.