15 Ultra vs Redmi A5

Phone 1

Phone 2

Winner

Xiaomi 15 Ultra

Lifespan decides this one: the 15 Ultra is supported until Mar 2030 at $30.36 per month of safe use, while the Redmi A5 runs out in Mar 2028 ($3.55/month). On a which-lasts-longer question, that's not a tie — it's the whole answer.

Value Score: 15 Ultra 65 · Redmi A5 65 — methodology

The lifespan decider

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

Xiaomi 15 Ultra $1350

Safe to buy$30.36/mo

2025◆ Buy-by Mar 20282030

Xiaomi Redmi A5 $75

Buy with care$3.55/mo

2025◆ Buy-by Mar 20262028

Category by category

Display

15 Ultra 100Redmi A5 70

The 15 Ultra's screen is the better one — 6.73-inch 2k (1440×3200) ltpo amoled, 1–120hz, up to 3200 nits peak.

Performance

15 Ultra 98Redmi A5 55

The 15 Ultra's Qualcomm Snapdragon 8 Elite (3nm) is simply the faster chip.

Camera

15 Ultra 96Redmi A5 40

The 15 Ultra has the stronger camera system (4 real rear lenses vs 1).

Battery

15 Ultra 88Redmi A5 84

5,410mAh vs 5,200mAh — the 15 Ultra lasts longer between charges.

Software longevity

15 Ultra 53Redmi A5 25

The 15 Ultra is supported until Mar 2030 — 23 months longer than the Redmi A5.

Value

15 Ultra 65Redmi A5 65

Pound for pound, these two are equally good deals.

Full spec table

Spec	15 Ultra	Redmi A5
Price (street)	$1350	$75
Display	6.73-inch 2K (1440×3200) LTPO AMOLED, 1–120Hz, up to 3200 nits peak	6.88-inch IPS LCD, HD+, 120Hz
Chipset	Qualcomm Snapdragon 8 Elite (3nm)	Unisoc T7250
RAM	16GB	3GB/4GB/6GB
Storage	512GB/1TB	64GB/128GB
Battery	5,410 mAh	5,200 mAh
Charging	90W wired, 80W wireless	15W wired
Rear cameras	50MP main, 50MP ultra-wide, 50MP telephoto (70mm floating), 200MP periscope telephoto	32MP main
Dimensions	161.3 × 75.3 × 9.35 mm	171.4 × 77.8 × 8.3 mm
Weight	226 g	193 g
Water resistance	IP68	IP52
Supported until	Mar 2030	Mar 2028

15 Ultra full verdict →Redmi A5 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.