PhoneLifespan

X100 Ultra vs Y39 5G

vs

Winner

Vivo Y39 5G

Lifespan decides this one: the Y39 5G is supported until Mar 2028 at $9.40 per month of safe use, while the X100 Ultra runs out in May 2029 ($20.39/month). On a which-lasts-longer question, that's not a tie — it's the whole answer.

Value Score: X100 Ultra 66 · Y39 5G 66 — methodology

The lifespan decider

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

Vivo X100 Ultra $720
Buy with care$20.39/mo
2024◆ Buy-by May 20272029
Vivo Y39 5G $200
Buy with care$9.40/mo
2025◆ Buy-by Mar 20262028

Category by category

Display
X100 Ultra 90Y39 5G 70

The X100 Ultra's screen is the better one — 6.78-inch ltpo amoled, 120hz, 3000 nits peak.

Performance
X100 Ultra 92Y39 5G 42

The X100 Ultra's Snapdragon 8 Gen 3 is simply the faster chip.

Camera
X100 Ultra 84Y39 5G 55

The X100 Ultra has the stronger camera system (3 real rear lenses vs 1).

Battery
X100 Ultra 90Y39 5G 100

6,500mAh vs 5,500mAh — the Y39 5G lasts longer between charges.

Software longevity
X100 Ultra 42Y39 5G 25

The X100 Ultra is supported until May 2029 — 14 months longer than the Y39 5G.

Value
X100 Ultra 66Y39 5G 66

Pound for pound, these two are equally good deals.

Full spec table
SpecX100 UltraY39 5G
Price (street)$720$200
Display6.78-inch LTPO AMOLED, 120Hz, 3000 nits peak6.68-inch IPS LCD, HD+, 120Hz
ChipsetSnapdragon 8 Gen 3Qualcomm Snapdragon 4 Gen 2 (4nm)
RAM12GB/16GB8GB
Storage256GB/512GB/1TB128GB/256GB
Battery5,500 mAh6,500 mAh
Charging80W wired, 30W wireless44W wired
Rear cameras50MP main, 200MP periscope telephoto, 50MP ultra-wide50MP main, 2MP depth
Dimensions164.1 x 75.6 x 9.2 mm163.9 × 76.7 × 8.1 mm
Weight229 g199 g
Water resistanceIP68/IP69IP64
Supported untilMay 2029Mar 2028
X100 Ultra full verdict →Y39 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.