PhoneLifespan

Galaxy F55 5G vs Galaxy S26 Ultra

vs

Winner

Samsung Galaxy S26 Ultra

Lifespan decides this one: the Galaxy S26 Ultra is supported until Mar 2033 at $13.62 per month of safe use, while the Galaxy F55 5G runs out in May 2029 ($7.09/month). On a which-lasts-longer question, that's not a tie — it's the whole answer.

Value Score: Galaxy F55 5G 73 · Galaxy S26 Ultra 77 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$7.09/mo
2024◆ Buy-by May 20272029
Samsung Galaxy S26 Ultra $1099
Safe to buy$13.62/mo
2026◆ Buy-by Mar 20312033

Category by category

Display
Galaxy F55 5G 70Galaxy S26 Ultra 100

The Galaxy S26 Ultra's screen is the better one — 6.9-inch dynamic ltpo amoled 2x, qhd+, 1–120hz, up to 2600 nits, with anti-reflective privacy display.

Performance
Galaxy F55 5G 70Galaxy S26 Ultra 100

The Galaxy S26 Ultra's Snapdragon 8 Elite Gen 5 for Galaxy is simply the faster chip.

Camera
Galaxy F55 5G 67Galaxy S26 Ultra 96

The Galaxy S26 Ultra has the stronger camera system (4 real rear lenses vs 2).

Battery
Galaxy F55 5G 80Galaxy S26 Ultra 80

Battery capacities are close enough not to decide this.

Software longevity
Galaxy F55 5G 42Galaxy S26 Ultra 96

The Galaxy S26 Ultra is supported until Mar 2033 — 45 months longer than the Galaxy F55 5G.

Value
Galaxy F55 5G 73Galaxy S26 Ultra 77

Overall value goes to the Galaxy S26 Ultra at $13.62 per month of safe use.

Full spec table
SpecGalaxy F55 5GGalaxy S26 Ultra
Price (street)$250$1099
Display6.55-inch Super AMOLED Plus, 1080x2400 (FHD+), 120Hz6.9-inch Dynamic LTPO AMOLED 2X, QHD+, 1–120Hz, up to 2600 nits, with anti-reflective Privacy Display
ChipsetQualcomm Snapdragon 7 Gen 1Snapdragon 8 Elite Gen 5 for Galaxy
RAM8GB/12GB12GB
Storage128GB/256GB256GB/512GB/1TB
Battery5,000 mAh5,000 mAh
Charging45W wired60W wired, 25W wireless
Rear cameras50MP main, 8MP ultra-wide, 2MP macro200MP main, 50MP ultra-wide, 10MP telephoto 3x, 50MP telephoto 5x periscope
Dimensions163.9 × 76.5 × 7.8 mm163.6 × 78.1 × 7.9 mm
Weight180 g214 g
Water resistanceNoneIP68
Supported untilMay 2029Mar 2033

Scores and verdicts are computed from our verified database — see exactly how. Specs from manufacturer documentation; prices reflect major US retailers.