Google’s Pixel 11 series took an unusual approach to battery capacity. While the standard Pixel 11 is expected to gain a little capacity, the Pixel 11 Pro and Pixel 11 Pro XL are reportedly shipping with smaller batteries than their Pixel 10 counterparts.
A 4,850mAh cell for the Pixel 11 Pro and 5,115mAh for the Pixel 11 Pro XL. That compares with 4,870 mAh and 5,200 mAh, respectively, on the Pixel 10 Pro and Pixel 10 Pro XL. A 0.41% and 1.63% reduction in battery capacity in the Pro and Pro XL.
The reductions are small, but the decision is notable because battery capacity has become one of the easiest ways for Android manufacturers to differentiate their flagships.
Tensor G6 is expected to carry more of the workload
The main reason behind the smaller Pro batteries appears to be efficiency.
Pixel 11 moves to Google’s Tensor G6, manufactured using TSMC’s 2nm process instead of the 3nm process used for Tensor G5. Also a MediaTek M90 modem, replacing the previous Samsung modem hardware. Both changes could reduce power consumption during demanding processor and connectivity workloads.
Google says Tensor G6 delivers improved efficiency, with reporting around the launch citing up to 20% better power efficiency alongside faster browsing and app loading.
That gives Google some room to reduce physical battery capacity without necessarily reducing endurance.
But efficiency isn’t the same thing as battery life. The display, modem, cameras, and background software all contribute to daily consumption, and a more efficient processor cannot automatically compensate for every workload.
A smaller cell can also help the hardware design
There is another likely factor: physical design.
Battery capacity is only one part of a phone’s internal packaging. Reducing the cell slightly gives engineers more flexibility for cooling hardware, camera components, structural changes, or a thinner chassis.
That trade-off makes more sense when the reduction is only a few percentage points. Google can potentially use the space elsewhere while relying on Tensor G6 and the new modem to recover some of the lost energy budget.
The timing also matters. Android manufacturers are increasingly using higher-density battery technology to push capacities beyond 6,000mAh, particularly in Chinese flagships. Google has not followed that trend, and silicon-carbon batteries remain less widespread among major Western flagship lines.
The real test will be screen-on endurance
The Pixel 11 Pro’s smaller battery should not automatically mean worse battery life. A 20% efficiency improvement in one part of the system could outweigh a roughly 0.41% reduction in capacity, at least for some workloads.
Still, Google’s decision leaves less headroom than simply fitting a larger cell would have provided. Samsung’s Galaxy S26 Ultra, for example, is already using a 5,000mAh battery, while competing Android phones are pushing considerably higher capacities.
That makes the Pixel 11’s battery story less about raw capacity and more about whether Google’s efficiency gains show up in sustained screen-on testing.
The first independent battery benchmarks will ultimately determine whether Google made a sensible trade. If Tensor G6 and the new modem deliver the expected efficiency gains, the smaller cells may barely matter; if they don’t, the missing capacity will become much harder to justify.
