PhoneLifespan

15 Pro 5G vs P3 Ultra 5G

vs

Winner

Realme 15 Pro 5G

Lifespan decides this one: the 15 Pro 5G is supported until Jul 2029 at $8.82 per month of safe use, while the P3 Ultra 5G runs out in Mar 2029 ($9.49/month). On a which-lasts-longer question, that's not a tie — it's the whole answer.

Value Score: 15 Pro 5G 69 · P3 Ultra 5G 74 methodology

The lifespan decider

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

Realme 15 Pro 5G $330
Safe to buy$8.82/mo
2025◆ Buy-by Jul 20272029
Realme P3 Ultra 5G $315
Buy with care$9.49/mo
2025◆ Buy-by Mar 20272029

Category by category

Display
15 Pro 5G 80P3 Ultra 5G 70

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

Performance
15 Pro 5G 55P3 Ultra 5G 74

The P3 Ultra 5G's MediaTek Dimensity 8350 Ultra (4nm) is simply the faster chip.

Camera
15 Pro 5G 67P3 Ultra 5G 67

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

Battery
15 Pro 5G 100P3 Ultra 5G 100

Battery capacities are close enough not to decide this.

Software longevity
15 Pro 5G 45P3 Ultra 5G 40

The 15 Pro 5G is supported until Jul 2029 — 4 months longer than the P3 Ultra 5G.

Value
15 Pro 5G 69P3 Ultra 5G 74

Overall value goes to the P3 Ultra 5G at $9.49 per month of safe use.

Full spec table
Spec15 Pro 5GP3 Ultra 5G
Price (street)$330$315
Display6.8-inch AMOLED, 1.5K, 144Hz, up to 6500 nits peak, HDR10+, curved6.83-inch AMOLED, 1.5K, 120Hz, up to 1500 nits peak, Gorilla Glass 7i
ChipsetQualcomm Snapdragon 7 Gen 4 (4nm)MediaTek Dimensity 8350 Ultra (4nm)
RAM8GB/12GB8GB/12GB
Storage128GB/256GB/512GB128GB/256GB/512GB
Battery7,000 mAh6,000 mAh
Charging80W wired SuperVOOC80W wired (100% in 47 min), 5W reverse
Rear cameras50MP main, 50MP ultra-wide50MP main, 8MP ultra-wide
Dimensions162.3 × 76.2 × 7.7 mm163.1 × 76.9 × 7.4 mm
Weight187 g183 g
Water resistanceIP68/IP69 (also MIL-STD-810H)IP68/IP69
Supported untilJul 2029Mar 2029

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