PhoneLifespan

Phone (3a) vs 15 Pro 5G

vs

Winner

Nothing Phone (3a)

The Phone (3a) wins this one, taking software longevity and camera decisively. Against the 15 Pro 5G it's also the sounder buy at $6.18 per month of safe use.

Value Score: Phone (3a) 75 · 15 Pro 5G 69 methodology

The lifespan decider

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

Nothing Phone (3a) $349
Safe to buy$6.18/mo
2025◆ Buy-by Mar 20292031
Realme 15 Pro 5G $330
Safe to buy$8.82/mo
2025◆ Buy-by Jul 20272029

Category by category

Display
Phone (3a) 8015 Pro 5G 80

Both displays are effectively the same class.

Performance
Phone (3a) 6415 Pro 5G 55

The Phone (3a)'s Snapdragon 7s Gen 3 is simply the faster chip.

Camera
Phone (3a) 7915 Pro 5G 67

The Phone (3a) has the stronger camera system (3 real rear lenses vs 2).

Battery
Phone (3a) 8015 Pro 5G 100

7,000mAh vs 5,000mAh — the 15 Pro 5G lasts longer between charges.

Software longevity
Phone (3a) 6715 Pro 5G 45

The Phone (3a) is supported until Mar 2031 — 19 months longer than the 15 Pro 5G.

Value
Phone (3a) 7515 Pro 5G 69

Overall value goes to the Phone (3a) at $6.18 per month of safe use.

Full spec table
SpecPhone (3a)15 Pro 5G
Price (street)$349$330
Display6.77-inch AMOLED, 1080×2392 (FHD+), up to 120Hz, 3000 nits peak6.8-inch AMOLED, 1.5K, 144Hz, up to 6500 nits peak, HDR10+, curved
ChipsetSnapdragon 7s Gen 3Qualcomm Snapdragon 7 Gen 4 (4nm)
RAM8GB/12GB8GB/12GB
Storage128GB/256GB128GB/256GB/512GB
Battery5,000 mAh7,000 mAh
Charging50W wired, no wireless80W wired SuperVOOC
Rear cameras50MP main, 50MP telephoto 2x, 8MP ultra-wide50MP main, 50MP ultra-wide
Dimensions163.52 × 77.50 × 8.35 mm162.3 × 76.2 × 7.7 mm
Weight201 g187 g
Water resistanceIP64IP68/IP69 (also MIL-STD-810H)
Supported untilMar 2031Jul 2029

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