Compare / Poco F9 Ultra vs vivo X300s

Poco F9 Ultra vs vivo X300s

A side-by-side comparison of the Poco F9 Ultra and the vivo X300s, covering display, chipset, memory, camera, battery and build.

Poco F9 Ultra
Xiaomi
Poco F9 Ultra
vivo X300s
vivo
vivo X300s

Overview

Display
Poco F9 Ultra
6.9inch
AMOLED · 185 Hz
1200 × 2608 · 416 PPI
vivo X300s
6.78inch
LTPO AMOLED · 144 Hz
1260 × 2800 · 452 PPI
Chip
Poco F9 Ultra
Qualcomm SM8850-AC Snapdragon 8 Elite Gen 5 (3 nm)
Octa-core (2x4.6 GHz Oryon V3 Phoenix L + 6x3.62 GHz Oryon V3 Phoenix M)
Adreno 840 · Android 16
vivo X300s
Mediatek Dimensity 9500 (3 nm)
Octa-core (1x4.21 GHz C1-Ultra & 3x3.5 GHz C1-Premium & 4x2.7 GHz C1-Pro)
Arm G1-Ultra · Android 16
Memory
Poco F9 Ultra
12 / 16GB RAM
256 GB · 512 GB · 1 TB storage
No card slot
vivo X300s
12 / 16GB RAM
256 GB · 512 GB · 1 TB storage
No card slot
Camera
Poco F9 Ultra
200MP Main
50 MP Periscope
50 MP Ultra Wide
32 MP selfie
8K@30fps video
vivo X300s
200MP Main
50 MP Periscope
50 MP Ultra Wide
50 MP selfie
4K@30/60/120fps video
Battery
Poco F9 Ultra
8,050mAh
100 W wired · 50 W wireless
vivo X300s
7,100mAh
90 W wired · 40 W wireless
Build
Poco F9 Ultra
235g
163.5 × 77.9 × 8.7 mm
IP68
vivo X300s
217g
162 × 75.5 × 8 mm
IP68
Connectivity
Poco F9 Ultra
5GWi-Fi 7Bluetooth 6.0NFCNano-SIM + Nano-SIM + eSIM + eSIM (max 2 at a time)USB Type-C 3.2
vivo X300s
5GWi-Fi 7Bluetooth 5.4NFCNano-SIM + Nano-SIM + eSIM (max 2 at a time) - InternationalUSB Type-C 3.2

Specifications

Poco F9 Ultra

Technology
GSM / HSPA / LTE / 5G
2G bands
GSM 850 / 900 / 1800 / 1900
3G bands
HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands
1, 2, 3, 4, 5, 7, 8, 18, 19, 20, 26, 28, 38, 40, 41, 42, 48, 66
5G bands
1, 2, 3, 5, 7, 8, 20, 26, 28, 38, 40, 41, 48, 66, 77, 78 SA/NSA
Speed
HSPA, LTE, 5G

vivo X300s

Technology
GSM / HSPA / LTE / 5G
2G bands
GSM 850 / 900 / 1800 / 1900
3G bands
HSDPA 800 / 850 / 900 / 1700(AWS) / 1800 / 1900 / 2100
4G bands
1, 2, 3, 4, 5, 7, 8, 18, 19, 20, 25, 26, 28, 34, 38, 39, 40, 41, 42, 43, 48, 66
5G bands
1, 2, 3, 5, 7, 8, 18, 20, 25, 26, 28, 34, 38, 39, 40, 41, 48, 66, 77, 78, 79 SA/NSA/Sub6
Speed
HSPA, LTE, 5G

Poco F9 Ultra

Announced
2026, September 01
Status
Available. Released 2026, September 01

vivo X300s

Announced
2026, March 30
Status
Available. Released 2026, April 03

Poco F9 Ultra

Dimensions
163.5 x 77.9 x 8.7 mm (6.44 x 3.07 x 0.34 in)
Weight
235 g (8.29 oz)
Build
Glass front (Gorilla Glass 7i), aluminum frame, glass-fiber reinforced plastic back
SIM

Nano-SIM + Nano-SIM + eSIM + eSIM (max 2 at a time)

IP68 dust tight and water resistant (immersible up to 1.5m for 30 min)

vivo X300s

Dimensions
162 x 75.5 x 8 mm (6.38 x 2.97 x 0.31 in)
Weight
217 g (7.65 oz)
Build
Glass front, aluminum frame, glass back
SIM

· Nano-SIM + Nano-SIM + eSIM (max 2 at a time) - International

· Nano-SIM + Nano-SIM - China

IP68/IP69 dust tight and water resistant (high pressure water jets; immersible up to 1.5m for 30 min)

Poco F9 Ultra

Type
AMOLED68B colors185HzDolby VisionHDR10+850 nits (typ)2200 nits (HBM)4500 nits (peak)
Size
6.9 inches, 116.6 cm2 (~91.6% screen-to-body ratio)
Resolution
1200 x 2608 pixels, 19.5:9 ratio (~416 ppi density)
Protection

Corning Gorilla Glass 7i

10000 nits (peak) in HDR videos only

vivo X300s

Type
LTPO AMOLED1B colors144Hz2160Hz PWMHDR10+HDR Vivid
Size
6.78 inches, 111.5 cm2 (~91.1% screen-to-body ratio)
Resolution
1260 x 2800 pixels, 20:9 ratio (~452 ppi density)
Protection

Reinforced Glass

Ultra HDR image support

Poco F9 Ultra

OS
Android 16, up to 4 major OS updates, HyperOS 3
Chipset
Qualcomm SM8850-AC Snapdragon 8 Elite Gen 5 (3 nm)
CPU
Octa-core (2x4.6 GHz Oryon V3 Phoenix L + 6x3.62 GHz Oryon V3 Phoenix M)
GPU
Adreno 840

vivo X300s

OS
Android 16, up to 5 major OS updates, OriginOS 6
Chipset
Mediatek Dimensity 9500 (3 nm)
CPU
Octa-core (1x4.21 GHz C1-Ultra & 3x3.5 GHz C1-Premium & 4x2.7 GHz C1-Pro)
GPU
Arm G1-Ultra

Poco F9 Ultra

Card slot
No
Internal

256GB 12GB RAM, 512GB 16GB RAM, 1TB 16GB RAM

UFS 4.1

vivo X300s

Card slot
No
Internal

256GB 12GB RAM, 512GB 12GB RAM, 512GB 16GB RAM, 1TB 16GB RAM

UFS 4.1

Poco F9 Ultra

Triple

200 MP, f/1.7, 24mm (wide), 1/1.56", 0.5µm, PDAF, OIS

50 MP, f/3.0, 114mm (periscope telephoto), 1/2.76", 0.64µm, PDAF, OIS, 5x optical zoom

50 MP, f/2.4, 17mm, 102˚ (ultrawide), 1/2.88", 0.61µm

Features
Color spectrum sensor, LED flash, HDR, panorama
Video
8K@30fps, 4K@30/60fps, 1080p@30/60/120/240/960/1920fps, gyro-EIS, HDR10+

vivo X300s

Triple

200 MP, f/1.7, 23mm (wide), 1/1.4", 0.56µm, PDAF, OIS

50 MP, f/2.6, 70mm (periscope telephoto), 1/1.95", PDAF, OIS, 3x optical zoom

50 MP, f/2.0, 15mm, 119˚ (ultrawide), 1/2.76", 0.64µm, AF

Optional add-on zoom lenses:

200mm, 2.35x optical zoom, Zeiss optics

Features
Color spectrum sensorLaser AFZeiss opticsZeiss T* lens coatingLED flashpanoramaHDR3D LUT import
Video
4K@30/60/120fps, 1080p@30/60/120/240fps, gyro-EIS, 4K@120fps HDR

Poco F9 Ultra

Single
32 MP, f/2.2, 22mm (wide), 1/3.4", 0.61µm
Features
HDR
Video
4K@30fps, 1080p@30/60fps

vivo X300s

Single
50 MP, f/2.0, 20mm (wide), 1/2.76", 0.64µm, AF
Features
HDR
Video
4K@30/60fps, 1080p@30/60fps

Poco F9 Ultra

Loudspeaker
Yes, with stereo speakers (with Dolby Atmos)
3.5mm jack

No

Tuned by Bose

Bose 2.1 stereo sound system with a woofer

24-bit/192kHz Hi-Res & Hi-Res wireless audio

vivo X300s

Loudspeaker
Yes, with stereo speakers
3.5mm jack
No

Poco F9 Ultra

WLAN
Wi-Fi 802.11 a/b/g/n/ac/6/7, dual-band, Wi-Fi Direct
Bluetooth
6.0A2DPLEAptX HDAptX AdaptiveLHDC 5.0ASHAMIHCAuracast
Positioning
GPS (L1+L5)BDS (B1I+B1c+B2a)GALILEO (E1+E5a)QZSS (L1+L5)NavIC (L5)GLONASS
NFC
Yes (market/region dependent)
Infrared port
Yes
Radio
No
USB
USB Type-C 3.2, OTG, video output

vivo X300s

WLAN
Wi-Fi 802.11 a/b/g/n/ac/6/7, dual-band
Bluetooth
5.4, A2DP, LE, aptX HD, LHDC 5
Positioning
GPS (L1+L5)BDS (B1I+B1c+B2a+B2b)GALILEO (E1+E5a+E5b)QZSS (L1+L5)NavIC (L1+L5)GLONASS
NFC
Yes
Infrared port
Yes
Radio
No
USB
USB Type-C 3.2, OTG, DisplayPort

Poco F9 Ultra

Sensors
Fingerprint (under display, ultrasonic), accelerometer, proximity, gyro, compass

vivo X300s

Sensors
Fingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass

Poco F9 Ultra

Type
Si/C Li-Ion 8050 mAh
Charging

100W wired, PD3.0, QC3+, 100W PPS, 100% in 50 min

50W wireless, 50% in 37 min

27W reverse wired

22.5W reverse wireless

vivo X300s

Type
Si/C Li-Ion 7100 mAh
Charging

90W wired

40W wireless

Reverse wired

Poco F9 Ultra

Colors
Black, Dark Cherry
Models
26077PC53G
Price
£ 729.00 / € 779.90

vivo X300s

Colors
Black, Silver, Purple, Green
Models
V2548A
Price
About 630 EUR

Poco F9 Ultra

Performance
GeekBench: 10500 (v6)
Display
1283 nits max brightness (measured)
Loudspeaker
-26.1 LUFS (Good)
Battery
Active use score 24:35h

vivo X300s

Not listed for this device

Poco F9 Ultra

Energy
Class A
Battery
80:44h endurance, 1000 cycles
Free fall
Class C (90 falls)
Repairability
Class C

vivo X300s

Not listed for this device

How the Poco F9 Ultra and vivo X300s differ

  • The Poco F9 Ultra has a larger battery, 8050 mAh against 7100 mAh on the vivo X300s.
  • The Poco F9 Ultra has the bigger screen, 6.9 inches against 6.78 inches.
  • The Poco F9 Ultra is the newer of the two, released in August 2026.