PhoneLifespan

Zenfone 11 Ultra vs Galaxy S25

vs

Winner

Samsung Galaxy S25

Lifespan decides this one: the Galaxy S25 is supported until Feb 2032 at $8.86 per month of safe use, while the Zenfone 11 Ultra runs out in Mar 2028 ($28.82/month). On a which-lasts-longer question, that's not a tie — it's the whole answer.

Value Score: Zenfone 11 Ultra 61 · Galaxy S25 75 — methodology

The lifespan decider

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

Asus Zenfone 11 Ultra $600
Buy with care$28.82/mo
2024◆ Buy-by Mar 20262028
Samsung Galaxy S25 $599
Safe to buy$8.86/mo
2025◆ Buy-by Feb 20302032

Category by category

Display
Zenfone 11 Ultra 70Galaxy S25 90

The Galaxy S25's screen is the better one — 6.2-inch dynamic ltpo amoled 2x, fhd+, 1–120hz, up to 2600 nits.

Performance
Zenfone 11 Ultra 92Galaxy S25 98

The Galaxy S25's Snapdragon 8 Elite for Galaxy is simply the faster chip.

Camera
Zenfone 11 Ultra 79Galaxy S25 79

Camera systems are comparable on paper — pick by sample photos.

Battery
Zenfone 11 Ultra 90Galaxy S25 60

5,500mAh vs 4,000mAh — the Zenfone 11 Ultra lasts longer between charges.

Software longevity
Zenfone 11 Ultra 25Galaxy S25 81

The Galaxy S25 is supported until Feb 2032 — 47 months longer than the Zenfone 11 Ultra.

Value
Zenfone 11 Ultra 61Galaxy S25 75

Overall value goes to the Galaxy S25 at $8.86 per month of safe use.

Full spec table
SpecZenfone 11 UltraGalaxy S25
Price (street)$600$599
Display6.78-inch flexible E6 AMOLED, FHD+ (1080×2400), 144Hz, 2500-nit peak, 107% DCI-P36.2-inch Dynamic LTPO AMOLED 2X, FHD+, 1–120Hz, up to 2600 nits
ChipsetSnapdragon 8 Gen 3Snapdragon 8 Elite for Galaxy
RAM12GB/16GB12GB
Storage256GB/512GB128GB/256GB/512GB
Battery5,500 mAh4,000 mAh
Charging65W wired (HyperCharge), 15W Qi wireless25W wired, 15W wireless (Qi2 Ready), 4.5W reverse wireless
Rear cameras50MP main (Sony IMX890 1/1.56-inch, gimbal OIS), 13MP ultra-wide (120-degree), 32MP telephoto 3x (OIS)50MP main, 12MP ultra-wide, 10MP telephoto 3x
Dimensions163.8 × 76.8 × 8.9 mm146.9 × 70.5 × 7.2 mm
Weight224 g162 g
Water resistanceIP68IP68
Supported untilMar 2028Feb 2032
Zenfone 11 Ultra full verdict →Galaxy S25 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.