12 4G vs 15 Pro 5G

Phone 1

Phone 2

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 12 4G runs out in Jul 2028 ($7.16/month). On a which-lasts-longer question, that's not a tie — it's the whole answer.

Value Score: 12 4G 63 · 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.

Realme 12 4G $175

Buy with care$7.16/mo

2024◆ Buy-by Jul 20262028

Realme 15 Pro 5G $330

Safe to buy$8.82/mo

2025◆ Buy-by Jul 20272029

Category by category

Display

12 4G 7015 Pro 5G 80

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

12 4G 3615 Pro 5G 55

The 15 Pro 5G's Qualcomm Snapdragon 7 Gen 4 (4nm) is simply the faster chip.

Camera

12 4G 5515 Pro 5G 67

The 15 Pro 5G has the stronger camera system (2 real rear lenses vs 1).

Battery

12 4G 8015 Pro 5G 100

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

Software longevity

12 4G 2915 Pro 5G 45

The 15 Pro 5G is supported until Jul 2029 — 13 months longer than the 12 4G.

Value

12 4G 6315 Pro 5G 69

Overall value goes to the 15 Pro 5G at $8.82 per month of safe use.

Full spec table

Spec	12 4G	15 Pro 5G
Price (street)	$175	$330
Display	6.67-inch AMOLED, FHD+, 120Hz, up to 2000 nits peak	6.8-inch AMOLED, 1.5K, 144Hz, up to 6500 nits peak, HDR10+, curved
Chipset	Qualcomm Snapdragon 685 (6nm)	Qualcomm Snapdragon 7 Gen 4 (4nm)
RAM	8GB	8GB/12GB
Storage	128GB/256GB	128GB/256GB/512GB
Battery	5,000 mAh	7,000 mAh
Charging	67W wired SUPERVOOC	80W wired SuperVOOC
Rear cameras	50MP main, 2MP depth	50MP main, 50MP ultra-wide
Dimensions	163 × 75.5 × 7.9 mm	162.3 × 76.2 × 7.7 mm
Weight	187 g	187 g
Water resistance	IP54	IP68/IP69 (also MIL-STD-810H)
Supported until	Jul 2028	Jul 2029

12 4G full verdict →15 Pro 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.