PhoneLifespan

15 Pro 5G vs P4 Power 5G

vs

Winner

Realme P4 Power 5G

The P4 Power 5G wins this one, taking performance and software longevity decisively. Against the 15 Pro 5G it's also the sounder buy at $7.12 per month of safe use.

Value Score: 15 Pro 5G 68 Β· P4 Power 5G 73 β€” methodology

Who should pick which

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

Realme 15 Pro 5G

A big-battery, big-screen mid-ranger with a rare triple-50MP camera setup and flagship-grade IP69 durability, with estimated support to 2029.

Pick it if

  • βœ“ Battery-life users
  • βœ“ Media watchers

Skip it if

  • βœ— Peak-performance gamers
  • βœ— Compact-phone fans
Realme P4 Power 5G

The first phone with a 10,001mAh battery, the Realme P4 Power turns multi-day endurance into its whole identity, backed by an official 3 OS / 4 security-year promise and full IP69 durability.

Pick it if

  • βœ“ Heavy users who hate charging
  • βœ“ Travelers and outdoor users
  • βœ“ Long-term budget keepers

Skip it if

  • βœ— You want a light, slim phone
  • βœ— You prioritize camera versatility

The lifespan decider

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

Realme 15 Pro 5G $330
Safe to buy$9.14/mo
2025β—† Buy-by Jul 20272029
Realme P4 Power 5G $300
Safe to buy$7.12/mo
2026β—† Buy-by Jan 20282030

Category by category

Display
15 Pro 5G 80P4 Power 5G 70

The 15 Pro 5G's screen is the better one β€” 6.8-inch amoled, 1.5k, 144hz, up to 6500 nits peak, hdr10+, curved.

Performance
15 Pro 5G 55P4 Power 5G 62

The P4 Power 5G's MediaTek Dimensity 7400 Ultra is simply the faster chip.

Camera
15 Pro 5G 67P4 Power 5G 67

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

Battery
15 Pro 5G 100P4 Power 5G 100

Battery capacities are close enough not to decide this.

Software longevity
15 Pro 5G 43P4 Power 5G 50

The P4 Power 5G is supported until Jan 2030 β€” 6 months longer than the 15 Pro 5G.

Value
15 Pro 5G 68P4 Power 5G 73

Overall value goes to the P4 Power 5G at $7.12 per month of safe use.

Frequently asked

Does the Realme 15 Pro 5G have a waterproof rating?

Yes. It carries IP68 and IP69 ratings, surviving immersion and high-pressure water jets, plus MIL-STD-810H shock compliance.

How long will the Realme 15 Pro get software updates?

Realme commits to roughly 3 major Android OS upgrades and 4 years of security patches for its number series, putting end of support around July 2029.

How long will the Realme P4 Power get software updates?

Realme's P4 series policy covers 3 major Android OS upgrades and 4 years of security patches. Because the P4 Power launched in January 2026 on Android 16 with realme UI 7.0, that means OS updates up to Android 19 and security support to roughly January 2030 - a solid window that lets the enormous battery outlast several ordinary phones' worth of charge cycles.

Is the 10,001mAh battery worth the extra weight?

If battery anxiety is your main pain point, yes. The trade-off is real - 219g and about 9.1mm make it one of the chunkier phones in its class - but you get genuine two-day endurance, 32.5 hours of rated video playback and the ability to reverse-charge earbuds or a friend's phone. If you value slimness over stamina, a lighter P4 or 15T makes more sense.

Full spec table
Spec15 Pro 5GP4 Power 5G
Price (street)$330$300
Display6.8-inch AMOLED, 1.5K, 144Hz, up to 6500 nits peak, HDR10+, curved6.78-inch 1.5K AMOLED (1280x2800), 144Hz, Gorilla Glass 7i
ChipsetQualcomm Snapdragon 7 Gen 4 (4nm)MediaTek Dimensity 7400 Ultra
RAM8GB/12GB8GB/12GB
Storage128GB/256GB/512GB128GB/256GB
Battery7,000 mAh10,001 mAh
Charging80W wired SuperVOOC80W wired, 27W reverse wired
Rear cameras50MP main, 50MP ultra-wide50MP main, 8MP ultra-wide
Dimensions162.3 Γ— 76.2 Γ— 7.7 mm163.3 x 76 x 9.1 mm (approx)
Weight187 g219 g
Water resistanceIP68/IP69 (also MIL-STD-810H)IP66/IP68/IP69
Supported untilJul 2029Jan 2030

More comparisons

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