15T vs POCO X8 Pro Max
It depends
Too close to call outright
These two are within 2 points overall, so it depends on you: keep phones for years → POCO X8 Pro Max (supported until Mar 2032); want maximum speed → 15T (MediaTek Dimensity 8400-Ultra).
Value Score: 15T 70 · POCO X8 Pro Max 72 — methodology
Who should pick which
Beyond the scores — our take on each phone and the buyer it actually suits.
The affordable Leica-camera option with the same big screen and battery as the Pro, minus the periscope and fastest charging.
Pick it if
- ✓ Buyers who want Leica cameras and a big screen on a tighter budget
- ✓ People who prefer a slightly lighter, thinner body
Skip it if
- ✗ You want a periscope zoom or wireless charging
- ✗ You need flagship-tier raw performance
POCO's new upper-mid halo phone crams a flagship-class Dimensity 9500s and a colossal 8500mAh battery into a sealed body backed by six years of security patches.
Pick it if
- ✓ Power users who want flagship speed and two-day battery without paying flagship prices
- ✓ Heavy gamers and streamers who value sustained performance and a large screen
- ✓ Long-term owners who want patches running into the early 2030s
Skip it if
- ✗ You prefer a compact, pocket-friendly phone under 190g
- ✗ Photography flexibility with a telephoto or high-end ultra-wide is a priority
The lifespan decider
When specs are close, support length decides it — this is what each phone costs per month of safe use.
Category by category
The POCO X8 Pro Max's screen is the better one — 6.83-inch amoled, 1.5k (1280 x 2772), 120hz, up to 3500 nits peak, dolby vision, hdr10+, gorilla glass 7i.
The 15T's MediaTek Dimensity 8400-Ultra is simply the faster chip.
The 15T has the stronger camera system (3 real rear lenses vs 2).
8,500mAh vs 5,500mAh — the POCO X8 Pro Max lasts longer between charges.
The POCO X8 Pro Max is supported until Mar 2032 — 18 months longer than the 15T.
Pound for pound, these two are equally good deals.
Frequently asked
What is the difference between the Xiaomi 15T and 15T Pro?
The 15T uses the Dimensity 8400-Ultra chip, a 2x telephoto, and 67W wired-only charging. The Pro steps up to the Dimensity 9400+, a 5x periscope telephoto, and 90W wired plus 50W wireless charging.
Does the Xiaomi 15T have wireless charging?
No. The standard 15T supports 67W wired charging only. Wireless charging is reserved for the 15T Pro.
When will the POCO X8 Pro Max stop getting security updates?
With six years of security support from its March 2026 release, the X8 Pro Max should receive patches until about March 2032, and four Android version upgrades along the way. That makes it one of the most future-proofed phones in the sub-$500 class, giving buyers confidence that the huge battery and fast chip will still be paired with a maintained, secure operating system years from now.
Is the POCO X8 Pro Max worth it over the regular X8 Pro?
Only if you want maximum performance and battery. The Pro Max upgrades to the flagship Dimensity 9500s, a larger 8500mAh cell, a bigger 6.83-inch screen and Wi-Fi 7, but it costs roughly $120 more and weighs 218g. Both phones share the identical 4 OS / 6 security policy, so the Max is not about longer support, it is about more raw power and endurance for people who will use it.
Full spec table
| Spec | 15T | POCO X8 Pro Max |
|---|---|---|
| Price (street) | $500 | $449 |
| Display | 6.83-inch AMOLED, 2772x1280, 144Hz | 6.83-inch AMOLED, 1.5K (1280 x 2772), 120Hz, up to 3500 nits peak, Dolby Vision, HDR10+, Gorilla Glass 7i |
| Chipset | MediaTek Dimensity 8400-Ultra | MediaTek Dimensity 9500s (3nm) |
| RAM | 12GB | 12GB |
| Storage | 256GB/512GB | 256GB/512GB |
| Battery | 5,500 mAh | 8,500 mAh |
| Charging | 67W wired | 100W wired, 27W reverse wired |
| Rear cameras | 50MP main, 50MP telephoto 2x, 12MP ultra-wide | 50MP main (Light Fusion 600, f/1.5, OIS), 8MP ultra-wide (f/2.2) |
| Dimensions | 163.2 × 78.0 × 7.5 mm | 162.9 x 77.9 x 8.2 mm |
| Weight | 194 g | 218 g |
| Water resistance | IP68 | IP68/IP69K |
| Supported until | Sep 2030 | Mar 2032 |
More comparisons
Scores and verdicts are computed from our verified database — see exactly how. Specs from manufacturer documentation; prices reflect major US retailers.