PhoneLifespan

POCO M8 5G vs Redmi 15 5G

vs

Winner

Xiaomi POCO M8 5G

The POCO M8 5G wins this one, taking software longevity and display decisively. Against the Redmi 15 5G it's also the sounder buy at $2.89 per month of safe use.

Value Score: POCO M8 5G 83 Β· Redmi 15 5G 75 β€” methodology

Who should pick which

Beyond the scores β€” our take on each phone and the buyer it actually suits.

Xiaomi POCO M8 5G

The longest-supported budget POCO ever, pairing a light 178g build and a 120Hz AMOLED with an officially confirmed four OS upgrades and six years of security patches.

Pick it if

  • βœ“ Budget and first-time buyers who want maximum years of safe use per dollar
  • βœ“ People who value a light phone with a good screen over cameras
  • βœ“ Parents, students or backup-phone buyers on a tight budget

Skip it if

  • βœ— You want strong cameras or fast flagship-style charging
  • βœ— You need heavy sustained gaming performance
Xiaomi Redmi 15 5G

A large-screen budget 5G phone with a 7000mAh battery and 144Hz display, with estimated support to 2029.

Pick it if

  • βœ“ Battery-life users
  • βœ“ Big-screen fans

Skip it if

  • βœ— You want AMOLED
  • βœ— Fast-charging seekers

The lifespan decider

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

Xiaomi POCO M8 5G $189
Safe to buy$2.89/mo
2026β—† Buy-by Jan 20302032
Xiaomi Redmi 15 5G $180
Safe to buy$4.98/mo
2025β—† Buy-by Aug 20272029

Category by category

Display
POCO M8 5G 80Redmi 15 5G 70

The POCO M8 5G's screen is the better one β€” 6.77-inch amoled, fhd+ (1080 x 2392), 120hz, up to 3200 nits peak.

Performance
POCO M8 5G 48Redmi 15 5G 46

Performance is a wash β€” same chip tier.

Camera
POCO M8 5G 55Redmi 15 5G 55

Camera systems are comparable on paper β€” pick by sample photos.

Battery
POCO M8 5G 90Redmi 15 5G 100

7,000mAh vs 5,520mAh β€” the Redmi 15 5G lasts longer between charges.

Software longevity
POCO M8 5G 78Redmi 15 5G 43

The POCO M8 5G is supported until Jan 2032 β€” 29 months longer than the Redmi 15 5G.

Value
POCO M8 5G 83Redmi 15 5G 75

Overall value goes to the POCO M8 5G at $2.89 per month of safe use.

Frequently asked

When will the POCO M8 5G stop getting security updates?

POCO officially confirmed four OS upgrades and six years of security patches for the M8 5G, up from the old two-upgrade, three-year policy for the M series. From its January 2026 launch that means security support to around January 2032 and Android upgrades reaching roughly Android 19. For a phone this cheap, that is one of the longest support commitments in the industry and the headline reason to consider it.

Is the POCO M8 5G worth buying in 2026?

As a low-cost long-life phone it is outstanding value. At roughly $199 with six years of patches, it costs under $3 a month to keep secure, and the 120Hz AMOLED, light build and microSD slot are welcome extras. Just set expectations on the camera and charging, which are basic. If you want an inexpensive phone that stays safe and usable for years, few rivals match it.

How large is the Redmi 15 5G battery?

It has a 7000mAh battery with 33W wired and 18W reverse wired charging.

Does the Redmi 15 5G have NFC and an IR blaster?

Yes, it includes NFC plus an infrared port for controlling appliances.

Full spec table
SpecPOCO M8 5GRedmi 15 5G
Price (street)$189$180
Display6.77-inch AMOLED, FHD+ (1080 x 2392), 120Hz, up to 3200 nits peak6.9-inch IPS LCD, FHD+, 144Hz, 850 nits peak
ChipsetQualcomm Snapdragon 6 Gen 3 (4nm)Qualcomm Snapdragon 6s Gen 3
RAM6GB/8GB4GB/6GB/8GB
Storage128GB/256GB/512GB128GB/256GB
Battery5,520 mAh7,000 mAh
Charging45W wired, 18W reverse wired33W wired, 18W reverse wired
Rear cameras50MP main (f/1.8, PDAF)50MP main, 2MP depth
Dimensions164 x 75.4 x 7.4 mm169.5 Γ— 80.5 Γ— 8.4 mm
Weight178 g217 g
Water resistanceIP66IP64
Supported untilJan 2032Aug 2029

More comparisons

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