SpecEagle review · Xiaomi

Redmi K70 Ultra review: Dimensity 9300+ and a 5,500 mAh cell — the flat-screen flagship killer.

SpecEagle Editorial·Aug 2024·$420
Overall
85/100
Class rank
#40 of 42
Tier
Flagship
Buy?
Yes
The verdict, up front

The enthusiast's flat-screen flagship.

K70 Ultra pairs the all-big-core Dimensity 9300+ with a flat 144 Hz panel and 120 W charging at a price Western flagships can't touch — the reason it sells out in China. The camera is the single concession. If you can import it (or buy the POCO twin), it is one of the great value flagships of its generation.

01Display

88/100

88/100 trails the 91-point cohort average for flagship phones of 2024.

TypeAMOLED, flat, 144 Hz, 4,000 nits peak
Size6.67 inches
Resolution2,712 × 1,220 px (1.5K)
ProtectionXiaomi Shield Glass

02Camera

78/100

78/100 is one of the weaker camera results among flagship phones of 2024 — 10 points under the average. Check the rows below before buying for this.

Main50 MP, f/1.6 (Light Fusion 800), OIS
Ultrawide8 MP
Selfie20 MP

03Performance

92/100

92/100 — right at the average for flagship phones of 2024.

ChipsetMediaTek Dimensity 9300+ (4 nm)
Cooling5,000 mm² dual-channel VC
RAM12 / 16 / 24 GB
Storage256 GB / 512 GB / 1 TB

04Battery

84/100

84/100 trails the 87-point cohort average for flagship phones of 2024.

Capacity5,500 mAh
Wired120 W HyperCharge

05Build

80/100

80/100 is one of the weaker build results among flagship phones of 2024 — 7 points under the average. Check the rows below before buying for this.

06Value

88/100

At 88/100 this is one of the strongest value showings among flagship phones of 2024 — 6 points above the cohort average.

What works
  • Dimensity 9300+ all-big-core CPU — true flagship speed.
  • 120 W charging + 5,500 mAh.
  • Flat 144 Hz 4,000-nit panel.
  • Up to 24 GB RAM, Wi-Fi 7, IP68.
What doesn't
  • 8 MP ultrawide, no telephoto.
  • China-only — global is the POCO F-series.
  • 212 g.
  • 3 OS updates.
Cross-shop it against
iPhone 17 Pro Max
$1199 · score 93/100

How this review is built: every section score, spec row and comparison on this page comes from SpecEagle's tracked catalogue — scores weight measured specs against the 42-phone cohort of flagship devices released around the same time. We don't publish invented lab anecdotes. Spot an error? .