PhoneLifespan

Moto G15 vs P3 Ultra 5G

vs

Winner

Realme P3 Ultra 5G

The P3 Ultra 5G wins this one, taking performance and battery decisively. Against the Moto G15 it's also the sounder buy at $9.49 per month of safe use.

Value Score: Moto G15 65 · 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.

Motorola Moto G15 $175
Buy with care$8.81/mo
2025◆ Buy-by Feb 20262028
Realme P3 Ultra 5G $315
Buy with care$9.49/mo
2025◆ Buy-by Mar 20272029

Category by category

Display
Moto G15 70P3 Ultra 5G 70

Both displays are effectively the same class.

Performance
Moto G15 39P3 Ultra 5G 74

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

Camera
Moto G15 55P3 Ultra 5G 67

The P3 Ultra 5G has the stronger camera system (2 real rear lenses vs 1).

Battery
Moto G15 84P3 Ultra 5G 100

6,000mAh vs 5,200mAh — the P3 Ultra 5G lasts longer between charges.

Software longevity
Moto G15 24P3 Ultra 5G 40

The P3 Ultra 5G is supported until Mar 2029 — 13 months longer than the Moto G15.

Value
Moto G15 65P3 Ultra 5G 74

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

Full spec table
SpecMoto G15P3 Ultra 5G
Price (street)$175$315
Display6.72-inch IPS LCD, FHD+, 120Hz6.83-inch AMOLED, 1.5K, 120Hz, up to 1500 nits peak, Gorilla Glass 7i
ChipsetMediaTek Helio G81 ExtremeMediaTek Dimensity 8350 Ultra (4nm)
RAM4GB/8GB8GB/12GB
Storage128GB/256GB/512GB128GB/256GB/512GB
Battery5,200 mAh6,000 mAh
Charging18W wired80W wired (100% in 47 min), 5W reverse
Rear cameras50MP main, 2MP macro50MP main, 8MP ultra-wide
Dimensions165.7 × 76 × 8.2 mm163.1 × 76.9 × 7.4 mm
Weight190 g183 g
Water resistanceIP54IP68/IP69
Supported untilFeb 2028Mar 2029
Moto G15 full verdict →P3 Ultra 5G full verdict →Longevity master board →

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