POCO F9 Pro vs REDMI K90 Ultra
The POCO F9 Pro scores 8.8 in our rating, and the REDMI K90 Ultra scores 7.9. The POCO F9 Pro leads in display, camera, battery and software support, while the REDMI K90 Ultra is ahead in design. The POCO F9 Pro is the newer phone, announced Sep 1, 2026.
Key differences
Why choose the POCO F9 Pro
- Brighter screen 10,000 nits vs 3,500 nits
- Higher refresh rate 185 Hz vs 165 Hz
- Newer model Sep 1, 2026 vs Jun 30, 2026
- Lighter 206 g vs 227 g
- Reverse wireless charging
- Better selfie video 4K@30 vs 1080p@60
Why choose the REDMI K90 Ultra
- Bigger battery 8,550 mAh vs 6,330 mAh
- Bigger screen 6.83 inches vs 6.59 inches
- Better water resistance IP68 + IP69 vs IP68
- More RAM 12 GB / 16 GB vs 12 GB
- Thinner 8.18 mm vs 8.79 mm
- Higher-resolution video 8K@30 vs 4K@60
PhoneRanked scores
Calculated from specs, relative to phones from the same year and price range. How we rate phones
Value for money marked “est.” is an estimate: that phone has no official US launch price, so it is not highlighted against the others.
Spec
POCO F9 ProREDMI K90 Ultra
Overall
8.8
7.9
Display
8.7
8.4
Performance
8.7
8.6
Camera
7.3
6.6
Battery
8.3
7.7
Design
8.6
8.8
Software support
7.4
3.5
Value for money
6.0 est.
5.0 est.
Display
Spec
POCO F9 ProREDMI K90 Ultra
Size
6.59 inches
6.83 inches
Type
OLED, AMOLED (M11, POCO HyperRGB)
OLED
Resolution
1156 × 2510 px
1280 × 2772 px
Pixel density
—
447 ppi
Refresh rate
185 Hz
165 Hz
Adaptive refresh
✕ No
✕ No
Peak brightness
10,000 nits
3,500 nits
HDR
HDR10+, Dolby Vision
HDR10+, Dolby Vision, HDR Vivid
Protection
Corning Gorilla Glass 7i
—
Performance
Spec
POCO F9 ProREDMI K90 Ultra
Process
3 nm
3 nm
Max CPU clock
4.6 GHz
4.32 GHz
GPU
Adreno 840 (V Series, 2 slices)
Adreno 830
RAM
12 GB
12 GB / 16 GB
Storage
256 GB / 512 GB
256 GB / 512 GB
Storage type
UFS 4.1
UFS 4.1
microSD slot
✕ No
✕ No
Cameras
Spec
POCO F9 ProREDMI K90 Ultra
Main camera
200 MP, f/1.68
50 MP, f/1.68, 1/1.55"
Optical stabilization
✓ Yes
✓ Yes
Ultrawide
8 MP
8 MP
Telephoto
50 MP, 2.5× optical
—
Optical zoom
2.5×
—
Rear cameras
3
2
Rear video
4K@60
8K@30
Front camera
32 MP
20 MP
Front video
4K@30
1080p@60
Battery and charging
Spec
POCO F9 ProREDMI K90 Ultra
Capacity
6,330 mAh
8,550 mAh
Battery type
Silicon-carbon
Silicon-carbon
Wired charging
100 W
100 W
Wireless charging
50 W
—
Reverse wireless
✓ Yes
✕ No
Charger in box
✓ Yes
✓ Yes
Design and build
Spec
POCO F9 ProREDMI K90 Ultra
Dimensions
157.49 × 75.25 × 8.79 mm
162.91 × 77.93 × 8.18 mm
Thickness
8.79 mm
8.18 mm
Weight
206 g
227 g
Form factor
Bar
Bar
Frame
—
Aluminum
Water resistance
IP68
IP68 + IP69
Fingerprint
Under-display ultrasonic
Under-display ultrasonic
3D face unlock
✕ No
✕ No
SIM
Dual Nano-SIM + eSIM
Dual Nano-SIM
Colors
Black, White, Aurora Green
Space Silver, Sky Blue, Shadow Black
Connectivity and features
Spec
POCO F9 ProREDMI K90 Ultra
5G
✓ Yes
✓ Yes
Wi-Fi
Wi-Fi 7
Wi-Fi 7
Bluetooth
6.0
5.4
NFC
✓ Yes
✓ Yes
3.5 mm jack
✕ No
✕ No
Stereo speakers
✓ Yes
✓ Yes
Satellite
✕ No
✕ No
IR blaster
✓ Yes
✓ Yes
Software
Spec
POCO F9 ProREDMI K90 Ultra
OS at launch
Android 16
Android 16
Interface
Xiaomi HyperOS 3
Xiaomi HyperOS 3
OS updates
4 years
—
Security updates
6 years
—
Launch and price
Spec
POCO F9 ProREDMI K90 Ultra
Announced
Sep 1, 2026
Jun 30, 2026
Released
Sep 1, 2026
Jun 30, 2026
Status
Released
Released
Green marks the stronger value in a row. Specs come from official manufacturer data, cross-checked with established tech media; each phone page lists its sources. Report an error
