Xiaomi is reportedly working on a next‑generation smartphone that could shake up the endurance segment by packing a massive 10,000 mAh battery into a surprisingly slim body. Recent leaks suggest the device widely believed to be the Redmi K90 Ultra will combine extraordinary battery life with a design thickness of under 8.5 mm, challenging the notion that big batteries must mean bulky phones.
According to tipster posts, the phone will support 100 W wired fast charging and full‑power wireless charging, making it practical despite the enormous cell capacity. Achieving such a large battery without making the handset heavy or thick would be a notable engineering accomplishment in smartphone design.
The rumored phone is expected to include a high‑refresh‑rate display, potentially up to 165 Hz, and could be powered by a flagship‑level chipset in the Dimensity 9‑series. These specs would help it compete with flagship devices in both battery endurance and performance while remaining sleek in hand.
This development comes as part of a broader trend in the Android world toward phones with ever‑larger batteries some nearing 9,000 mAh without massive increases in thickness, as manufacturers explore new battery tech and efficient internal layouts.
While official confirmation from Xiaomi has yet to arrive, the combination of a 10,000 mAh battery and a decently slim profile could set a new bar for endurance phones if it reaches the market.
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