PhoneLifespan

6 vs 13 Ultra

vs

Winner

Fairphone 6

Lifespan decides this one: the 6 is supported until Jun 2033 at $10.67 per month of safe use, while the 13 Ultra runs out in Apr 2028 ($29.52/month). On a which-lasts-longer question, that's not a tie — it's the whole answer.

Value Score: 6 66 · 13 Ultra 62 — methodology

The lifespan decider

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

Fairphone 6 $899
Safe to buy$10.67/mo
2025◆ Buy-by Jun 20312033
Xiaomi 13 Ultra $650
Buy with care$29.52/mo
2023◆ Buy-by Apr 20262028

Category by category

Display
6 8013 Ultra 90

The 13 Ultra's screen is the better one — 6.73-inch ltpo amoled, 3200 x 1440, 120hz.

Performance
6 6413 Ultra 85

The 13 Ultra's Qualcomm Snapdragon 8 Gen 2 is simply the faster chip.

Camera
6 6713 Ultra 91

The 13 Ultra has the stronger camera system (4 real rear lenses vs 2).

Battery
6 6813 Ultra 80

5,000mAh vs 4,415mAh — the 13 Ultra lasts longer between charges.

Software longevity
6 10013 Ultra 26

The 6 is supported until Jun 2033 — 62 months longer than the 13 Ultra.

Value
6 6613 Ultra 62

Overall value goes to the 6 at $10.67 per month of safe use.

Full spec table
Spec613 Ultra
Price (street)$899$650
Display6.31-inch LTPO OLED, FHD+, 10-120Hz adaptive6.73-inch LTPO AMOLED, 3200 x 1440, 120Hz
ChipsetQualcomm Snapdragon 7s Gen 3 (4nm)Qualcomm Snapdragon 8 Gen 2
RAM8GB12GB/16GB
Storage256GB256GB/512GB/1TB
Battery4,415 mAh5,000 mAh
Charging30W wired; user-removable battery90W wired, 50W wireless
Rear cameras50MP main, 13MP ultra-wide50MP main, 50MP ultra-wide, 50MP telephoto 3.2x, 50MP periscope telephoto 5x
Dimensions156.5 × 73.3 × 9.6 mm163.2 × 74.6 × 9.1 mm
Weight193 g227 g
Water resistanceIP55 (also MIL-STD-810H, 1.5m drop)IP68
Supported untilJun 2033Apr 2028
6 full verdict →13 Ultra 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.