POCO F9 Ultra vs POCO F4
The POCO F9 Ultra scores 9.3 in our rating, and the POCO F4 scores 6.0. The POCO F9 Ultra leads in display, performance, camera, battery, design and software support. The POCO F9 Ultra is the newer phone, announced Sep 1, 2026.
Key differences
Why choose the POCO F9 Ultra
- Bigger battery 8,050 mAh vs 4,500 mAh
- Faster wired charging 100 W vs 67 W
- Bigger screen 6.9 inches vs 6.67 inches
- Brighter screen 10,000 nits vs 1,300 nits
- Higher refresh rate 185 Hz vs 120 Hz
- Better water resistance IP68 vs IP53
Why choose the POCO F4
- Lighter 195 g vs 235 g
- Thinner 7.7 mm vs 8.74 mm
- Charger in the box
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 UltraPOCO F4
Overall
9.3
6.0
Display
8.7
7.2
Performance
9.0
5.2
Camera
8.7
5.9
Battery
8.8
4.9
Design
8.2
6.8
Software support
7.4
5.0
Value for money
6.0 est.
6.0 est.
Display
Spec
POCO F9 UltraPOCO F4
Size
6.9 inches
6.67 inches
Type
OLED, Ultra-bright AMOLED
OLED, AMOLED DotDisplay
Resolution
1200 × 2608 px
1080 × 2400 px
Pixel density
416 ppi
395 ppi
Refresh rate
185 Hz
120 Hz
Adaptive refresh
✕ No
✕ No
Peak brightness
10,000 nits
1,300 nits
HDR
HDR10+, Dolby Vision
HDR10+, Dolby Vision
Protection
Corning Gorilla Glass 7i
Corning Gorilla Glass 5
Performance
Spec
POCO F9 UltraPOCO F4
Process
3 nm
7 nm
Max CPU clock
4.6 GHz
3.2 GHz
GPU
Adreno 840
Adreno 650
Geekbench 6 single-core
—
1,141
Geekbench 6 multi-core
—
3,084
RAM
12 GB / 16 GB
6 GB / 8 GB / 12 GB
Storage
256 GB / 512 GB / 1 TB
128 GB / 256 GB
Storage type
UFS 4.1
UFS 3.1
microSD slot
✕ No
✕ No
Cameras
Spec
POCO F9 UltraPOCO F4
Main camera
200 MP, f/1.68
64 MP, f/1.79, 1/2.0"
Optical stabilization
✓ Yes
✓ Yes
Ultrawide
50 MP
8 MP
Telephoto
50 MP, 5× optical, periscope
—
Optical zoom
5×
—
Rear cameras
3
3
Rear video
8K@30
4K@60
Front camera
32 MP
20 MP
Front video
4K@30
—
Battery and charging
Spec
POCO F9 UltraPOCO F4
Capacity
8,050 mAh
4,500 mAh
Battery type
Silicon-carbon
—
Wired charging
100 W
67 W
Wireless charging
50 W
—
Reverse wireless
✓ Yes
✕ No
Charger in box
✕ No
✓ Yes
Design and build
Spec
POCO F9 UltraPOCO F4
Dimensions
163.49 × 77.94 × 8.74 mm
163.2 × 75.95 × 7.7 mm
Thickness
8.74 mm
7.7 mm
Weight
235 g
195 g
Form factor
Bar
Bar
Frame
Aluminum
Plastic
Back
Fiberglass
Glass
Water resistance
IP68
IP53
Fingerprint
Under-display ultrasonic
Side-mounted
3D face unlock
✕ No
✕ No
SIM
Dual Nano-SIM + eSIM
Dual Nano-SIM
Colors
Black, Dark Cherry
Night Black, Nebula Green, Moonlight Silver
Connectivity and features
Spec
POCO F9 UltraPOCO F4
5G
✓ Yes
✓ Yes
Wi-Fi
Wi-Fi 7
Wi-Fi 6
Bluetooth
6.0
5.2
USB
USB-C 3.x
USB-C 2.0
NFC
✓ Yes
✓ Yes
3.5 mm jack
✕ No
✕ No
Stereo speakers
✓ Yes
✓ Yes
Satellite
✕ No
✕ No
IR blaster
✓ Yes
✓ Yes
Software
Spec
POCO F9 UltraPOCO F4
OS at launch
Android 16
Android 12
Interface
Xiaomi HyperOS 3
MIUI 13
OS updates
4 years
—
Security updates
6 years
3 years
Launch and price
Spec
POCO F9 UltraPOCO F4
Announced
Sep 1, 2026
Jun 23, 2022
Released
Sep 1, 2026
Jun 27, 2022
Status
Released
Discontinued
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
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