Phone (3a) vs Galaxy A55 5G

Phone 1

Phone 2

Winner

Nothing Phone (3a)

Lifespan decides this one: the Phone (3a) is supported until Mar 2031 at $6.16 per month of safe use, while the Galaxy A55 5G runs out in Mar 2029 ($9.08/month). On a which-lasts-longer question, that's not a tie — it's the whole answer.

Value Score: Phone (3a) 75 · Galaxy A55 5G 67 — 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$6.16/mo

2025◆ Buy-by Mar 20292031

Samsung Galaxy A55 5G $300

Buy with care$9.08/mo

2024◆ Buy-by Mar 20272029

Category by category

Display

Phone (3a) 80Galaxy A55 5G 70

The Phone (3a)'s screen is the better one — 6.77-inch amoled, 1080×2392 (fhd+), up to 120hz, 3000 nits peak.

Performance

Phone (3a) 64Galaxy A55 5G 60

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

Camera

Phone (3a) 79Galaxy A55 5G 67

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

Battery

Phone (3a) 80Galaxy A55 5G 80

Battery capacities are close enough not to decide this.

Software longevity

Phone (3a) 67Galaxy A55 5G 39

The Phone (3a) is supported until Mar 2031 — 24 months longer than the Galaxy A55 5G.

Value

Phone (3a) 75Galaxy A55 5G 67

Overall value goes to the Phone (3a) at $6.16 per month of safe use.

Full spec table

Spec	Phone (3a)	Galaxy A55 5G
Price (street)	$349	$300
Display	6.77-inch AMOLED, 1080×2392 (FHD+), up to 120Hz, 3000 nits peak	6.6-inch Super AMOLED, 1080x2340 (FHD+), 120Hz
Chipset	Snapdragon 7s Gen 3	Exynos 1480
RAM	8GB/12GB	8GB/12GB
Storage	128GB/256GB	128GB/256GB
Battery	5,000 mAh	5,000 mAh
Charging	50W wired, no wireless	25W wired
Rear cameras	50MP main, 50MP telephoto 2x, 8MP ultra-wide	50MP main, 12MP ultra-wide, 5MP macro
Dimensions	163.52 × 77.50 × 8.35 mm	161.1 × 77.4 × 8.2 mm
Weight	201 g	213 g
Water resistance	IP64	IP67
Supported until	Mar 2031	Mar 2029

Phone (3a) full verdict →Galaxy A55 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.