Xiaomi Mi 9 vs Xiaomi Mi 9T Pro (Redmi K20 Pro)

A spec-by-spec comparison of the Xiaomi Mi 9 and the Xiaomi Mi 9T Pro (Redmi K20 Pro), taken from their full specification sheets. Green marks the better value in each measured row.

Head to head

Xiaomi Mi 9Xiaomi Mi 9T Pro (Redmi K20 Pro)
Price$129$409
Our rating9/109/10
Battery3,300 mAh4,000 mAh
Wired charging27W—
RAM (max)8 GB8 GB
Storage (max)256 GB256 GB
Screen size6.39 in6.39 in
Main camera48 MP48 MP
Weight (lower is lighter)173 g191 g
ReleasedMar 2019Aug 2019
Summary: Xiaomi Mi 9 is ahead on weight (lower is lighter). Xiaomi Mi 9T Pro (Redmi K20 Pro) is ahead on battery.
★ Which should you buy? Specs are close to an even split here, so Xiaomi Mi 9 is the better buy — the extra cost of the other one isn't matched by a clear spec advantage.

Display

Xiaomi Mi 9Xiaomi Mi 9T Pro (Redmi K20 Pro)
TypeSuper AMOLED, HDR10Super AMOLED, HDR10
Size6.39 inches, 100.2 cm2 (~85.2% screen-to-body ratio)6.39 inches, 100.2 cm2 (~86.1% screen-to-body ratio)
Resolution1080 x 2340 pixels, 19.5:9 ratio (~403 ppi density)1080 x 2340 pixels, 19.5:9 ratio (~403 ppi density)
ProtectionCorning Gorilla Glass 6Corning Gorilla Glass 5

Platform

Xiaomi Mi 9Xiaomi Mi 9T Pro (Redmi K20 Pro)
OSAndroid 9.0 (Pie), upgradable to Android 10, MIUI 12.5—
ChipsetQualcomm SM8150 Snapdragon 855 (7 nm)Qualcomm SM8150 Snapdragon 855 (7 nm)
CPUOcta-core (1x2.84 GHz Kryo 485 & 3x2.42 GHz Kryo 485 & 4x1.78 GHz Kryo 485)Octa-core (1x2.84 GHz Kryo 485 & 3x2.42 GHz Kryo 485 & 4x1.78 GHz Kryo 485)
GPUAdreno 640Adreno 640

Memory

Xiaomi Mi 9Xiaomi Mi 9T Pro (Redmi K20 Pro)
Card slotNoNo
Internal64GB 6GB RAM, 64GB 8GB RAM, 128GB 6GB RAM, 128GB 8GB RAM, 256GB 8GB RAM (UFS 2.1)64GB 6GB RAM, 128GB 6GB RAM, 128GB 8GB RAM, 256GB 8GB RAM (UFS 2.1)

Main Camera

Xiaomi Mi 9Xiaomi Mi 9T Pro (Redmi K20 Pro)
Triple48 MP, f/1.8, 27mm (wide), 1/2.0", 0.8µm, PDAF; 12 MP, f/2.2, 54mm (telephoto), 1/3.6", 1.0µm, PDAF, 2x optical zoom; 16 MP, f/2.2, 13mm (ultrawide), 1/3.0", 1.0µm, PDAF48 MP, f/1.8, 26mm (wide), 1/2.0", 0.8µm, PDAF, Laser AF; 8 MP, f/2.4, 53mm (telephoto), 1/4.0", 1.12µm, PDAF, 2x optical zoom; 13 MP, f/2.4, 12mm (ultrawide), 1/3.1", 1.12µm
FeaturesLaser AF, Dual-LED flash, HDR, panoramaDual-LED flash, HDR, panorama
Video4K@30/60fps, 1080p@30/120/240fps, 1080p@960fps4K@30/60fps, 1080p@30/120/240fps, 1080p@960fps

Selfie Camera

Xiaomi Mi 9Xiaomi Mi 9T Pro (Redmi K20 Pro)
Single20 MP, f/2.0, (wide), 1/3", 0.9µmMotorized pop-up 20 MP, f/2.2, (wide), 1/3.4", 0.8µm
FeaturesHDRHDR
Video1080p@30fps1080p@30fps

Battery

Xiaomi Mi 9Xiaomi Mi 9T Pro (Redmi K20 Pro)
TypeLi-Po 3300 mAh, non-removableLi-Po 4000 mAh, non-removable
Charging27W wired (Quick Charge 4+), 20W wireless—

Body

Xiaomi Mi 9Xiaomi Mi 9T Pro (Redmi K20 Pro)
Dimensions157.5 x 74.7 x 7.6 mm (6.20 x 2.94 x 0.30 in)156.7 x 74.3 x 8.8 mm (6.17 x 2.93 x 0.35 in)
Weight173 g (6.10 oz)191 g (6.74 oz)
BuildGlass front (Gorilla Glass 6), glass back (Gorilla Glass 5), aluminum frameGlass front (Gorilla Glass 5), glass back (Gorilla Glass 5), aluminum frame
SIMDual SIM (Nano-SIM, dual stand-by)—
Colors—Carbon Black, Flame Red, Glacier Blue, Pearl White

Comms

Xiaomi Mi 9Xiaomi Mi 9T Pro (Redmi K20 Pro)
WLANWi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, DLNAWi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Bluetooth5.0, A2DP, LE, aptX HD5.0, A2DP, LE, aptX HD
PositioningGPS (L1+L5), GLONASS (L1), BDS (B1), GALILEO (E1+E5a), QZSS (L1+L5)GPS, GLONASS, BDS, GALILEO
NFCYesYes
Infrared portYes—
RadioNoFM radio
USBUSB Type-C 2.0, OTGUSB Type-C 2.0, OTG

Launch

Xiaomi Mi 9Xiaomi Mi 9T Pro (Redmi K20 Pro)
Announced2019, February 20May 28, 2019 (Redmi K20 Pro), August 2019 (Mi 9T Pro)
StatusReleased 2019, March 25Available. Released June 1, 2019 (Redmi K20 Pro), August 20, 2019 (Mi 9T Pro in Europe).
OS—Android 9.0 (Pie), upgradable to Android 10, MIUI 12.5.

Frequently asked questions

Which has the better battery, Xiaomi Mi 9 or Xiaomi Mi 9T Pro (Redmi K20 Pro)?

Xiaomi Mi 9T Pro (Redmi K20 Pro) — 3,300 mAh for the Xiaomi Mi 9 versus 4,000 mAh for the Xiaomi Mi 9T Pro (Redmi K20 Pro).

Which is lighter, Xiaomi Mi 9 or Xiaomi Mi 9T Pro (Redmi K20 Pro)?

Xiaomi Mi 9 — 173 g for the Xiaomi Mi 9 versus 191 g for the Xiaomi Mi 9T Pro (Redmi K20 Pro).

Which is newer, Xiaomi Mi 9 or Xiaomi Mi 9T Pro (Redmi K20 Pro)?

Xiaomi Mi 9T Pro (Redmi K20 Pro) — Mar 2019 for the Xiaomi Mi 9 versus Aug 2019 for the Xiaomi Mi 9T Pro (Redmi K20 Pro).

Is the Xiaomi Mi 9 or the Xiaomi Mi 9T Pro (Redmi K20 Pro) rated higher?

We rate the Xiaomi Mi 9 9/10 and the Xiaomi Mi 9T Pro (Redmi K20 Pro) 9/10.

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