Big-battery phones are finally going mainstream
Poco’s upcoming M8 Power and X8 are large battery smartphones designed to prioritize extreme battery life with 8,000mAh and up to 9,000mAh cells, big OLED screens, and mid-range chipsets, aiming to outlast typical flagship phones that focus on thin designs and premium materials. In my view, these phones matter because they flip the script: instead of chasing sleekness at the cost of endurance, they target people who work, game, or stream all day and are tired of carrying a power bank. A 9000mAh battery phone is no longer a niche experiment; it is the core of Poco’s pitch. That makes this duo less about bragging rights and more about practical value for users who care more about hours of screen-on time than polished luxury.
Poco M8 Power: a pocket-sized power bank with a huge screen
The Poco M8 Power is shaping up as the definition of a couch-and-commute workhorse, and its appeal starts with that enormous battery. The phone is expected to reuse the Redmi Note 17 design, but with an 8,000mAh battery in one version and a 7,700mAh pack in another, depending on market. That capacity alone puts it in a rare class of large battery smartphones, especially when most mainstream devices hover around half that size. It is paired with a 7-inch Samsung AMOLED display at FHD+ resolution and up to 1,800 nits of brightness, meaning this is practically a mini tablet in your pocket. Powering it is the Snapdragon 4 Gen 4 chipset with a 50MP main camera, 45W fast charging, and 22.5W reverse wired charging, effectively turning it into a backup battery for other gadgets.
Poco X8: endurance with more muscle and a 9000mAh option
If the M8 Power is a marathon runner, the Poco X8 looks like the same runner with better shoes and a longer stride. References in system code suggest it will be a rebrand of the Redmi Note 17 Pro, carrying a 50MP main camera plus a 2MP auxiliary sensor. The standout is the Poco X8 battery leak: the Redmi Note 17 Pro it mirrors packs a 9,000mAh battery, with reports that one variant will keep that size while another uses an 8,340mAh unit. That effectively makes it a headline 9000mAh battery phone and one of the biggest packs in a mainstream design. According to Kacper Skrzypek, the same device is expected to include a 6.83-inch AMOLED 1.5K display at 120Hz, Snapdragon 6s Gen 4, 67W fast charging, 22.5W reverse charging, and an 8MP front camera.
Rebranded Redmi DNA: why that is a good thing for buyers
Some people roll their eyes at rebrands, but in this case the Poco–Redmi overlap is a feature, not a bug. The Poco M8 Power is tipped to be a rebranded Redmi Note 17, while the Poco X8 is expected to mirror the Redmi Note 17 Pro’s hardware. That means these phones inherit platforms already engineered and tuned instead of untested one-offs. From a buyer’s perspective, you are getting the same 7-inch OLED and Snapdragon 4 Gen 4 combo on the M8 Power, and the same 6.83-inch AMOLED 1.5K panel, Snapdragon 6s Gen 4, and 50MP camera setup on the X8. What makes the rebranding strategy smart is reach: users who never see the Redmi Note 17 series in their region still get access to its ultra-high battery capacities, including 8,000mAh, 8,340mAh, and 9,000mAh options.
Which Poco offers better value for all‑day users?
Both models are unapologetically endurance-first, but they chase value in different ways. The Poco M8 Power looks ideal if you want a massive 7-inch OLED canvas, are fine with a mid-tier Snapdragon 4 Gen 4 chip, and care more about battery size than high refresh resolution. It is the all-day scroller and binge-watcher’s dream. The Poco X8, on the other hand, aims at users who still want a 9000mAh battery phone yet refuse to sacrifice performance or display sharpness: its Snapdragon 6s Gen 4, 1.5K 120Hz AMOLED panel, and 67W fast charging make it better suited to gamers and power users. In a market where premium flagships rarely cross 5,000mAh, Poco’s 8,000mAh–9,000mAh packs position these devices as blunt, practical tools for people who measure value in hours off the charger, not in brand badges.
