Galaxy A55 5G vs Redmi 15 5G

Phone 1

Phone 2

Winner

Xiaomi Redmi 15 5G

Lifespan decides this one: the Redmi 15 5G is supported until Aug 2029 at $4.80 per month of safe use, while the Galaxy A55 5G runs out in Mar 2029 ($9.12/month). On a which-lasts-longer question, that's not a tie — it's the whole answer.

Value Score: Galaxy A55 5G 67 · Redmi 15 5G 75 — methodology

The lifespan decider

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

Samsung Galaxy A55 5G $300

Buy with care$9.12/mo

2024◆ Buy-by Mar 20272029

Xiaomi Redmi 15 5G $180

Safe to buy$4.80/mo

2025◆ Buy-by Aug 20272029

Category by category

Display

Galaxy A55 5G 70Redmi 15 5G 70

Both displays are effectively the same class.

Performance

Galaxy A55 5G 60Redmi 15 5G 46

The Galaxy A55 5G's Exynos 1480 is simply the faster chip.

Camera

Galaxy A55 5G 67Redmi 15 5G 55

The Galaxy A55 5G has the stronger camera system (2 real rear lenses vs 1).

Battery

Galaxy A55 5G 80Redmi 15 5G 100

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

Software longevity

Galaxy A55 5G 39Redmi 15 5G 45

The Redmi 15 5G is supported until Aug 2029 — 5 months longer than the Galaxy A55 5G.

Value

Galaxy A55 5G 67Redmi 15 5G 75

Overall value goes to the Redmi 15 5G at $4.80 per month of safe use.

Full spec table

Spec	Galaxy A55 5G	Redmi 15 5G
Price (street)	$300	$180
Display	6.6-inch Super AMOLED, 1080x2340 (FHD+), 120Hz	6.9-inch IPS LCD, FHD+, 144Hz, 850 nits peak
Chipset	Exynos 1480	Qualcomm Snapdragon 6s Gen 3
RAM	8GB/12GB	4GB/6GB/8GB
Storage	128GB/256GB	128GB/256GB
Battery	5,000 mAh	7,000 mAh
Charging	25W wired	33W wired, 18W reverse wired
Rear cameras	50MP main, 12MP ultra-wide, 5MP macro	50MP main, 2MP depth
Dimensions	161.1 × 77.4 × 8.2 mm	169.5 × 80.5 × 8.4 mm
Weight	213 g	217 g
Water resistance	IP67	IP64
Supported until	Mar 2029	Aug 2029

Galaxy A55 5G full verdict →Redmi 15 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.