Poco Unveils M8x 5G Colors and 7,900mAh Battery Ahead of August 21 India Launch

Q: Will Poco's massive 7,900mAh battery and six-year update promise redefine budget 5G phones, or is the hardware too weak to last?

Poco is pushing the budget 5G category forward on battery life and software support, but it is not fully redefining it because the core hardware remains entry-level. The standout is the 7,900mAh battery. In a segment where endurance is often a compromise, Poco is offering something closer to a two- or three-day phone, with 45W charging and even 22.5W reverse charging. The six-year security promise and four Android upgrades are also unusually strong for this price band, potentially keeping the phone supported until 2032. That matters more than flashy specs for buyers who keep phones for years. The concern is whether the Snapdragon 4 Gen 5 can age gracefully enough to match that software lifespan. Early benchmark leaks suggest only small CPU gains over the previous generation, even if Qualcomm is touting a much better GPU. Paired with LPDDR4X RAM, UFS 2.2 storage, and just 4GB RAM on the base model, the M8x looks built for efficiency and everyday use rather than long-term performance headroom. Over time, newer Android versions and heavier apps may expose those limits. The rest of the package reinforces that trade-off. A 6.9-inch HD+ 120Hz LCD, 50MP main camera, Gorilla Glass 7i, IP64 rating, stereo speakers and headphone jack make it practical, not premium. For users prioritizing battery life, durability and update policy, it is a strong value. For those expecting the phone to feel fast and smooth deep into a six-year life, the chipset and memory setup may be the weak link.

Q: How long will it actually take to fully charge the Poco M8x's colossal 7,900mAh battery using its 45W wired charger?

It will likely take about 1 hour 45 minutes to 2 hours 15 minutes to fully charge, not the roughly 1 hour you might assume from “45W.” A simple power calculation shows why. A 7,900mAh battery is about 7.9Ah; at a typical phone battery voltage of around 3.85V, that works out to roughly 30Wh of energy. In a perfect world, a 45W charger could fill 30Wh in about 40 minutes. But phones do not charge at peak wattage the whole time: charging slows significantly after around 50 to 80 percent to protect battery health, and some power is lost as heat and conversion overhead. In real use, that means average charging power is much lower than the 45W headline figure. For a battery this large, an effective average of around 15 to 20W over the full cycle is more realistic, which points to a total charge time near the 1 hour 45 minute to 2 hour 15 minute range. The exact result will depend on whether Poco uses a single-cell or dual-cell design, the phone’s thermal management, and whether the charger can sustain the top rate for long. Until Poco publishes an official “0 to 100%” figure or independent tests appear, the safest expectation is roughly two hours for a full charge.

3 articles · Updated · sangritoday.com · Aug 20

August 21 at 12 noon is the India launch date for Poco's M8x 5G, which will go on sale via Flipkart after the brand disclosed fresh design and software details.
Three colors—Black, Blue and Leather Green—will be offered, with the green variant adding a vegan leather finish, while the phone also gets a metallic flat frame and quad-curved rear panel.
Snapdragon 4 Gen 5, a 7,900mAh battery and HyperOS 3 based on Android 16 headline the specs, with Poco promising four OS upgrades and six years of security updates.
45W wired charging, 22.5W reverse wired charging, Gorilla Glass 7i, Wet Touch 2.0 and an IP64 rating round out a device Poco says can last up to three days on one charge.