The first hard numbers surrounding Apple Watch’s battery life leaked online Thursday, and depending on a user’s activity, it may not last as long as many expected.
According to 9To5Mac, Apple Watch will be able to support between 2.5 and four hours of active use, 19 hours of passive use, or two to three days in low-power or standby mode.
Users playing games requiring “heavy” processing power are expected to have 2.5 hours while other apps will limit battery life to around 3.5 hours. Fitness tracking mode could last up to four hours.
Apple Watch will be able to display its digitally animated ticking clock face for approximately three hours.
The website’s sources report Apple Watch will be powered by an S1 chip similar to that found in existing iPod Touches, and supports a 60 frames-per-second Retina display — one of the chief reasons for the power drain.
Apple previously stated Apple Watch will need to be charged once per day. Sources told 9To5Mac that along with perfecting Apple Watch’s MagSafe inductive charging system, battery life has been a chief concern at the company, and part of the reason its launch date was pushed into 2015. (RELATED: 5 Things To Look Forward To From Apple’s Watch, iPhone 6 Launch Event)
According to the report, Apple Watch is currently on track to begin shipping by late March.