PhoneLifespan

Poco M7 Plus 5G vs Redmi 15 4G

vs

It depends

Too close to call outright

These two are within 0 points overall — it genuinely depends on price on the day. The Poco M7 Plus 5G edges both longevity and performance, so prefer it when prices are close.

Value Score: Poco M7 Plus 5G 75 · Redmi 15 4G 75 methodology

Who should pick which

Beyond the scores — our take on each phone and the buyer it actually suits.

Xiaomi Poco M7 Plus 5G

A budget 5G phone built around a giant 7000mAh silicon-carbon battery, with estimated support to 2029.

Pick it if

  • Battery-life users
  • Budget 5G buyers

Skip it if

  • You want AMOLED
  • Performance seekers
Xiaomi Redmi 15 4G

A 7000mAh budget giant whose security cover runs only to August 2029, so buy it for battery life rather than longevity.

Pick it if

  • Battery-life obsessives
  • Big-screen media and reading
  • Tight budgets

Skip it if

  • You need 5G
  • You want a light phone

The lifespan decider

When specs are close, support length decides it — this is what each phone costs per month of safe use.

Xiaomi Poco M7 Plus 5G $165
Safe to buy$4.49/mo
2025◆ Buy-by Aug 20272029
Xiaomi Redmi 15 4G $120
Safe to buy$3.32/mo
2025◆ Buy-by Aug 20272029

Category by category

Display
Poco M7 Plus 5G 70Redmi 15 4G 70

Both displays are effectively the same class.

Performance
Poco M7 Plus 5G 46Redmi 15 4G 36

The Poco M7 Plus 5G's Qualcomm Snapdragon 6s Gen 3 (6nm) is simply the faster chip.

Camera
Poco M7 Plus 5G 55Redmi 15 4G 55

Camera systems are comparable on paper — pick by sample photos.

Battery
Poco M7 Plus 5G 100Redmi 15 4G 100

Battery capacities are close enough not to decide this.

Software longevity
Poco M7 Plus 5G 44Redmi 15 4G 43

Both phones' support windows end around the same time.

Value
Poco M7 Plus 5G 75Redmi 15 4G 75

Pound for pound, these two are equally good deals.

Frequently asked

How big is the Poco M7 Plus 5G battery?

It uses a 7000mAh silicon-carbon battery with 33W wired charging and 18W reverse charging.

Does it have an AMOLED screen?

No, it has a 6.9-inch IPS LCD with a 144Hz refresh rate.

Is the Redmi 15 4G still supported?

Yes. It launched on 1 August 2025 with Android 15 and HyperOS 2, and Xiaomi's published policy covers security patches through August 2029. It sits comfortably inside its support window in 2026.

How long will the Redmi 15 4G get updates?

Xiaomi commits to two major Android upgrades, taking it as far as Android 17, plus four years of security patches that lapse around August 2029. That is about two years shorter than Samsung offers at a similar price.

Full spec table
SpecPoco M7 Plus 5GRedmi 15 4G
Price (street)$165$120
Display6.9-inch IPS LCD, FHD+, 144Hz, 850 nits peak6.9-inch IPS LCD, FHD+ (1080 x 2340), 144Hz
ChipsetQualcomm Snapdragon 6s Gen 3 (6nm)Qualcomm Snapdragon 685 (6nm)
RAM4GB/6GB/8GB4GB/6GB/8GB
Storage128GB128GB/256GB
Battery7,000 mAh7,000 mAh
Charging33W wired, 18W reverse wired33W wired
Rear cameras50MP main50MP main, 2MP depth
Dimensions168.5 × 80.5 × 8.4 mm171.1 × 82.1 × 8.6 mm
Weight217 g224 g
Water resistanceIP64IP64
Supported untilAug 2029Aug 2029

More comparisons

Scores and verdicts are computed from our verified database — see exactly how. Specs from manufacturer documentation; prices reflect major US retailers.