Galaxy F05 vs Galaxy S21 Ultra 5G

Phone 1

Phone 2

Winner

Samsung Galaxy F05

Lifespan decides this one: the Galaxy F05 is supported until Sep 2028 at $2.96 per month of safe use, while the Galaxy S21 Ultra 5G is already past its support window. On a which-lasts-longer question, that's not a tie — it's the whole answer.

Value Score: Galaxy F05 66 · Galaxy S21 Ultra 5G 40 — 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 F05 $80

Buy with care$2.96/mo

2024◆ Buy-by Sep 20262028

Samsung Galaxy S21 Ultra 5G $320

Avoid buyingsupport ended

2021◆ Buy-by Jan 20242026

Category by category

Display

Galaxy F05 50Galaxy S21 Ultra 5G 80

The Galaxy S21 Ultra 5G's screen is the better one — 6.8-inch dynamic amoled 2x, 3200x1440 (qhd+), 120hz.

Performance

Galaxy F05 40Galaxy S21 Ultra 5G 62

The Galaxy S21 Ultra 5G's Snapdragon 888 (US) / Exynos 2100 (global) is simply the faster chip.

Camera

Galaxy F05 55Galaxy S21 Ultra 5G 79

The Galaxy S21 Ultra 5G has the stronger camera system (3 real rear lenses vs 1).

Battery

Galaxy F05 80Galaxy S21 Ultra 5G 80

Battery capacities are close enough not to decide this.

Software longevity

Galaxy F05 32Galaxy S21 Ultra 5G 0

The Galaxy F05 is supported until Sep 2028 — 32 months longer than the Galaxy S21 Ultra 5G.

Value

Galaxy F05 66Galaxy S21 Ultra 5G 40

Overall value goes to the Galaxy F05 at $2.96 per month of safe use.

Full spec table

Spec	Galaxy F05	Galaxy S21 Ultra 5G
Price (street)	$80	$320
Display	6.7-inch PLS LCD, 720x1600 (HD+), 60Hz	6.8-inch Dynamic AMOLED 2X, 3200x1440 (QHD+), 120Hz
Chipset	MediaTek Helio G85	Snapdragon 888 (US) / Exynos 2100 (global)
RAM	4GB	12GB/16GB
Storage	64GB/128GB	128GB/256GB/512GB
Battery	5,000 mAh	5,000 mAh
Charging	25W wired	25W wired, 15W wireless
Rear cameras	50MP main, 2MP depth	108MP main, 12MP ultra-wide, 10MP telephoto 10x
Dimensions	168.8 × 78.2 × 8.8 mm	165.1 × 75.6 × 8.9 mm
Weight	195 g	229 g
Water resistance	None	IP68
Supported until	Sep 2028	Jan 2026

Galaxy F05 full verdict →Galaxy S21 Ultra 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.