PhoneLifespan

Redmi K70 Ultra vs Redmi K80 Pro

vs

Winner

Xiaomi Redmi K80 Pro

Lifespan decides this one: the Redmi K80 Pro is supported until Nov 2029 at $12.09 per month of safe use, while the Redmi K70 Ultra runs out in Jul 2028 ($15.17/month). On a which-lasts-longer question, that's not a tie — it's the whole answer.

Value Score: Redmi K70 Ultra 73 · Redmi K80 Pro 75 methodology

The lifespan decider

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

Xiaomi Redmi K70 Ultra $380
Buy with care$15.17/mo
2024◆ Buy-by Jul 20262028
Xiaomi Redmi K80 Pro $500
Safe to buy$12.09/mo
2024◆ Buy-by Nov 20272029

Category by category

Display
Redmi K70 Ultra 80Redmi K80 Pro 80

Both displays are effectively the same class.

Performance
Redmi K70 Ultra 95Redmi K80 Pro 98

Performance is a wash — same chip tier.

Camera
Redmi K70 Ultra 67Redmi K80 Pro 79

The Redmi K80 Pro has the stronger camera system (3 real rear lenses vs 2).

Battery
Redmi K70 Ultra 90Redmi K80 Pro 100

6,000mAh vs 5,500mAh — the Redmi K80 Pro lasts longer between charges.

Software longevity
Redmi K70 Ultra 30Redmi K80 Pro 49

The Redmi K80 Pro is supported until Nov 2029 — 16 months longer than the Redmi K70 Ultra.

Value
Redmi K70 Ultra 73Redmi K80 Pro 75

Pound for pound, these two are equally good deals.

Full spec table
SpecRedmi K70 UltraRedmi K80 Pro
Price (street)$380$500
Display6.67-inch AMOLED, 1.5K, 144Hz, 4000 nits peak, Dolby Vision6.67-inch AMOLED, 2K, 120Hz, 3200 nits peak, 12-bit
ChipsetMediaTek Dimensity 9300+ (4nm)Qualcomm Snapdragon 8 Elite (3nm)
RAM12GB/16GB/24GB12GB/16GB/24GB
Storage256GB/512GB/1TB256GB/512GB/1TB
Battery5,500 mAh6,000 mAh
Charging120W wired120W wired, 50W wireless
Rear cameras50MP main, 8MP ultra-wide, 2MP macro50MP main, 50MP telephoto, 32MP ultra-wide
Dimensions160.4 × 75.1 × 8.4 mm160.3 × 75.0 × 8.0 mm
Weight211 g213 g
Water resistanceIP68IP68
Supported untilJul 2028Nov 2029

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