Galaxy F55 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 F55 5G runs out in May 2029 ($7.08/month). On a which-lasts-longer question, that's not a tie — it's the whole answer.

Value Score: Galaxy F55 5G 73 · 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 F55 5G $250

Buy with care$7.08/mo

2024◆ Buy-by May 20272029

Xiaomi Redmi 15 5G $180

Safe to buy$4.80/mo

2025◆ Buy-by Aug 20272029

Category by category

Display

Galaxy F55 5G 70Redmi 15 5G 70

Both displays are effectively the same class.

Performance

Galaxy F55 5G 70Redmi 15 5G 46

The Galaxy F55 5G's Qualcomm Snapdragon 7 Gen 1 is simply the faster chip.

Camera

Galaxy F55 5G 67Redmi 15 5G 55

The Galaxy F55 5G has the stronger camera system (2 real rear lenses vs 1).

Battery

Galaxy F55 5G 80Redmi 15 5G 100

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

Software longevity

Galaxy F55 5G 42Redmi 15 5G 45

Both phones' support windows end around the same time.

Value

Galaxy F55 5G 73Redmi 15 5G 75

Pound for pound, these two are equally good deals.

Full spec table

Spec	Galaxy F55 5G	Redmi 15 5G
Price (street)	$250	$180
Display	6.55-inch Super AMOLED Plus, 1080x2400 (FHD+), 120Hz	6.9-inch IPS LCD, FHD+, 144Hz, 850 nits peak
Chipset	Qualcomm Snapdragon 7 Gen 1	Qualcomm Snapdragon 6s Gen 3
RAM	8GB/12GB	4GB/6GB/8GB
Storage	128GB/256GB	128GB/256GB
Battery	5,000 mAh	7,000 mAh
Charging	45W wired	33W wired, 18W reverse wired
Rear cameras	50MP main, 8MP ultra-wide, 2MP macro	50MP main, 2MP depth
Dimensions	163.9 × 76.5 × 7.8 mm	169.5 × 80.5 × 8.4 mm
Weight	180 g	217 g
Water resistance	None	IP64
Supported until	May 2029	Aug 2029

Galaxy F55 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.