Xiaomi
Xiaomi Poco F8 Ultra 5G 256GB ROM 12GB RAM Dual SIM GSM Unlocked - Black
Xiaomi Poco F8 Ultra 5G 256GB ROM 12GB RAM Dual SIM GSM Unlocked - Black
SKU: SKU:X-POCO-F8ULT-5G-12-256-BK
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POCO F8 Ultra 5G AI
Flagship Gaming Power. 2K Display. Black.
Ultimate performance smartphone built for gaming, speed, and immersive visuals.
Next-Gen 3nm Flagship Chip
Built with advanced 3nm architecture for faster speeds and improved power efficiency.
Oryon CPU Power
Up to 20% higher performance and 35% better efficiency for demanding tasks and gaming.
VisionBoost D8 Graphics
AI-powered visual enhancements deliver sharper details and smoother motion.
WildBoost Gaming Engine
Real-time workload prediction ensures stable FPS and reduced lag during gameplay.
6.9" 2K Ultra Display
Large high-resolution display for immersive viewing and gaming experiences.
Bose Sound Experience
Premium audio tuning delivers rich, immersive sound quality.
LiquidCool IceLoop System
Advanced 6700mm² cooling system keeps performance stable under heavy load.
50MP AI Camera
Capture sharp, detailed photos with advanced imaging technology.
6500mAh Battery
Long-lasting battery for extended gaming and daily usage.
100W Wired + 50W Wireless
Fast charging options with universal compatibility for convenience.
5G + NFC + Dual SIM
Stay connected globally with ultra-fast speeds and flexible connectivity.
GSM Unlocked Compatibility
Works with T-Mobile, Mint, Tello, and supported GSM carriers worldwide.
Important Information
- Factory Unlocked Global Version
- Supports 5G / 4G LTE networks
- Compatible with GSM carriers only
- Not compatible with CDMA networks (Verizon, Sprint)
- Please confirm compatibility before purchase
Buy POCO F8 Ultra Today
Available now at MyWorldPhone.com
| Network | Technology | GSM / HSPA / LTE / 5G |
|---|
| Launch | Announced | 2025, November 26 |
|---|---|---|
| Status | Available. Released 2025, November 26 |
| Body | Dimensions | 163.3 x 77.8 x 7.9 mm or 8.3 mm |
|---|---|---|
| Weight | 218 g or 220 g (7.69 oz) | |
| Build | Glass front (Poco Shield Glass), aluminum frame, glass-fiber reinforced plastic back or silicone polymer back | |
| SIM | · Nano-SIM + Nano-SIM + eSIM + eSIM (max 2 at a time) · Nano-SIM + Nano-SIM + eSIM (max 2 at a time) |
|
| IP68 dust tight and water resistant (immersible up to 1.5m for 30 min) |
| Display | Type | AMOLED, 68B colors, 2560Hz PWM, 120Hz, Dolby Vision, HDR10+, 2000 nits (HBM), 3500 nits (peak) |
|---|---|---|
| Size | 6.9 inches, 116.6 cm2 (~91.8% screen-to-body ratio) | |
| Resolution | 1200 x 2608 pixels, 19.5:9 ratio (~416 ppi density) | |
| Protection | Poco Shield Glass |
| Platform | OS | Android 16, 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 |
| Memory | Card slot | No |
|---|---|---|
| Internal | 256GB 12GB RAM, 512GB 16GB RAM | |
| UFS 4.1 |
| Main Camera | Triple | 50 MP, f/1.7, 23mm (wide), 1/1.31", 1.2µm, dual pixel PDAF, OIS 50 MP, f/3.0, 115mm (periscope telephoto), 1/2.76", 0.64µm, PDAF (30cm - ∞), OIS, 5x optical zoom 50 MP, f/2.4, 18mm, 102˚ (ultrawide), 1/2.88", 0.61µm |
|---|---|---|
| Features | Color spectrum sensor, LED flash, HDR, panorama | |
| Video | 8K@30fps, 4K@30/60fps, 1080p@30/60/120/240/960fps, 720p@1920fps, gyro-EIS, HDR10+ |
| Selfie camera | Single | 32 MP, f/2.2, 21mm (wide), 1/3.44", 0.64µm |
|---|---|---|
| Features | HDR | |
| Video | 4K@30fps, 1080p@30/60fps |
| Sound | 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 |
| Comms | WLAN | Wi-Fi 802.11 a/b/g/n/ac/6/7, dual-band, Wi-Fi Direct |
|---|---|---|
| Bluetooth | 6.0, A2DP, LE, aptX HD, aptX Adaptive, LHDC 5.0, ASHA, MIHC | |
| 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, Display Port, OTG |
| Features | Sensors | Fingerprint (under display, ultrasonic), accelerometer, proximity, gyro, compass |
|---|
| Battery | Type | 6500 mAh |
|---|---|---|
| Charging | 100W wired, PD3.0, QC3+, 100W PPS, 100% in 38 mins 50W wireless, 50% in 31 mins 22.5W reverse wireless |
| Misc | Colors | Black, White, Denim Blue |
|---|---|---|
| Models | 25102PCBEG |
| Our Tests | Performance | AnTuTu: 2720760 (v10), 3887841 (v11) GeekBench: 10876 (v6) 3DMark: 6864 (Wild Life Extreme) |
|---|---|---|
| Display | 1077 nits max brightness (measured) | |
| Loudspeaker | -26.0 LUFS (Very good) | |
| Battery |
Active use score 18:52h
|
| Warranty | No Warranty |
|---|
| 1pcs | Xiaomi Poco F8 Ultra 5G |
| 1pcs | Battery. |
| 1pcs | Home Charger. |
| 1pcs | Headphone. |
| 1pcs | Data Cable. |
| 1pcs | User Manual. |
1. Which exact POCO F8 Ultra is this?
This is the POCO F8 Ultra 5G with 12GB RAM, 256GB storage and Black finish. Xiaomi officially lists 12GB+256GB and 16GB+512GB global configurations.
2. Is Black an official color?
Yes. Xiaomi’s current global specification lists Black and Denim Blue.
3. Is White an official global F8 Ultra color?
Not on Xiaomi’s current global specification. The official global colors shown are Black and Denim Blue.
4. Is this a 5G phone?
Yes. It supports 5G SA and NSA, along with LTE, WCDMA and GSM technologies.
5. Does it support Dual SIM?
Yes. Xiaomi supports physical SIM and eSIM combinations with a maximum of two active lines.
6. Does it support eSIM?
Yes. eSIM is officially supported, although availability depends on country, carrier and service plan.
7. What SIM combinations are supported?
Xiaomi lists Nano-SIM + Nano-SIM, Nano-SIM + eSIM, or eSIM + eSIM.
8. Does it support microSD?
No. There is no expandable SD-card slot.
9. What operating system does it use?
The official global specification lists Xiaomi HyperOS 3.
10. What are the dimensions of the Black model?
Approximately 163.33 × 77.82 × 7.9mm, weighing about 218g. The Denim Blue version is slightly thicker and heavier.
Snapdragon 8 Elite Gen 5
11. What processor powers the POCO F8 Ultra?
It uses the Snapdragon 8 Elite Gen 5 Mobile Platform.
12. What semiconductor process is used?
The chipset is manufactured on a 3nm process.
13. How many CPU cores does it have?
Eight CPU cores.
14. What CPU architecture does it use?
Qualcomm’s Oryon CPU architecture.
15. How is the CPU configured?
Xiaomi specifies 2 Prime cores up to 4.6GHz plus 6 Performance cores up to 3.6GHz.
16. What is the maximum CPU clock speed?
Up to approximately 4.6GHz.
17. Is it a 64-bit processor?
Yes. Xiaomi’s technical FAQ specifies 64-bit operation.
18. Which GPU does it use?
The POCO F8 Ultra uses the Adreno 840 GPU.
19. Does it have dedicated AI processing hardware?
Yes. Xiaomi lists Qualcomm’s AI engine and a Hexagon processor.
20. Is this flagship-class hardware?
Yes. POCO positions Snapdragon 8 Elite Gen 5 as its flagship performance platform and reports major CPU, GPU and AI improvements versus the previous generation.
VisionBoost D8 & Gaming
21. What is VisionBoost D8?
It is a dedicated graphics-enhancement chipset used alongside the Snapdragon platform to improve image detail, motion smoothness and HDR effects.
22. Does it support AI Super Resolution?
Yes, for selected supported games. POCO currently lists titles including Call of Duty, Genshin Impact, Honkai: Star Rail, Mobile Legends and PUBG.
23. Does it support frame interpolation?
Yes. POCO advertises 120FPS Smart Frame Rate through VisionBoost D8 in supported gaming scenarios.
24. Does it support Game HDR?
Yes. POCO lists Game HDR as part of its VisionBoost feature set.
25. Does it support WildBoost?
Yes. Xiaomi’s technical FAQ explicitly confirms WildBoost support.
26. What does WildBoost do?
POCO says it predicts frame-by-frame computing demand to reduce frame drops and improve performance consistency and power efficiency.
27. Does a 120Hz screen guarantee 120fps?
No. The screen’s refresh capability and a game’s actual rendered frame rate are separate.
28. What is frame time at 60fps?
Approximately 16.7 milliseconds per frame.
29. What is frame time at 120fps?
Approximately 8.3 milliseconds per frame.
30. What does “1% low FPS” mean?
It measures performance during the slowest 1% of frames and is useful for judging visible stutter rather than relying only on average frame rate.
Cooling
31. What cooling system does the POCO F8 Ultra use?
POCO uses LiquidCool Technology with a 6700mm² 3D dual-channel, dual-layer IceLoop system.
32. How large is the cooling area?
Approximately 6700mm².
33. Why is it called dual-channel?
POCO says separate thermal pathways target major heat sources including the SoC and camera area.
34. Does it manage grip-area heat?
Yes. POCO specifically advertises a user-oriented thermal structure intended to redirect heat away from the grip zone.
35. Can the phone still become warm?
Yes. Sustained gaming, camera use, 5G, 100W charging and wireless charging can still produce noticeable heat.
RAM & Storage
36. How much physical RAM does this SKU have?
12GB LPDDR5X RAM.
37. What speed is the LPDDR5X memory?
Xiaomi lists 9600Mbps.
38. How much storage is included?
256GB.
39. What type of storage does it use?
UFS 4.1.
40. Does the 12GB/256GB version support Memory Extension?
Yes. Xiaomi lists virtual-memory options of 4GB, 6GB, 8GB or 12GB, with 4GB as the documented default.
41. Does virtual Memory Extension turn it into a true 24GB RAM phone?
No. The device still contains 12GB of physical LPDDR5X RAM; Memory Extension uses internal flash storage.
42. Does the 256GB version support UFS Storage Extension?
Yes. Xiaomi lists up to 8GB on the 256GB model.
43. What does the 512GB version support?
The 512GB model supports up to 16GB UFS Storage Extension.
44. Does it support Storage Refresh?
Yes.
45. Is all 256GB available to the user?
No. HyperOS, system partitions and preinstalled apps occupy part of the stated capacity.
6.9-Inch AMOLED Display
46. How large is the display?
POCO markets it as 6.9 inches; Xiaomi notes the measured full rectangle is approximately 6.85 inches.
47. Is the screen flat or curved?
It is a flat flexible AMOLED panel.
48. What is the native resolution?
2608 × 1200 pixels.
49. What is the pixel density?
Xiaomi’s technical FAQ lists approximately 419 PPI.
50. What is the official screen-to-body ratio?
The technical FAQ gives approximately 94.25%.
51. What is the maximum refresh rate?
Up to 120Hz.
52. What is the normal touch sampling rate?
Up to 480Hz.
53. What is the maximum instantaneous touch rate?
Up to 2560Hz under Game Turbo.
54. Is 2560Hz the refresh rate?
No. 120Hz is screen refresh; 2560Hz is instantaneous touch sampling.
55. Is 2560Hz PWM?
No. This is important: the official display uses DC dimming, while 2560Hz refers to touch sampling.
Brightness, HDR & Color
56. What is the maximum peak brightness?
Up to 3500 nits local peak brightness under qualifying conditions.
57. What is typical brightness?
Xiaomi’s primary global specification lists 600 nits typical.
58. What is HBM brightness?
Xiaomi’s primary specification lists 2000 nits HBM, although its detailed FAQ reports a different 1060-nit global HBM measurement. Because Xiaomi’s own documents differ, I would use the primary retail spec or avoid presenting the two figures together.
59. What is minimum brightness?
Approximately 1 nit.
60. How many colors can it display?
It supports 12-bit color and roughly 68 billion colors.
61. Does it support DCI-P3?
Yes.
62. Does it support HDR10+?
Yes.
63. Does it support Dolby Vision?
Yes, for compatible playback. Xiaomi’s FAQ specifically notes Dolby Vision playback support.
64. What is Pro HDR Display?
It is Xiaomi’s HDR display processing for compatible content.
65. What protects the display?
POCO uses POCO Shield Glass.
Dimming & Eye Comfort
66. Does the F8 Ultra use full-range DC dimming?
Yes. Xiaomi explicitly lists full-range DC dimming and a flicker-free display.
67. Does it use 2560Hz PWM?
No. That value is for instantaneous touch sampling, not dimming.
68. Does it have TÜV eye-care certifications?
Yes. Xiaomi lists TÜV Rheinland Low Blue Light, Flicker Free and Circadian Friendly certifications.
69. Does it support Wet Touch?
Yes. Wet Touch Display 2.0 is supported.
70. Does it support Always-On Display?
Yes.
Triple 50MP Camera System
71. How many rear cameras does the F8 Ultra have?
Three rear cameras. All three are 50MP: main, periscope telephoto and ultrawide.
72. What is the main camera?
A 50MP Light Fusion 950 main camera.
73. How large is the main sensor?
Approximately 1/1.31 inch.
74. What is the main-camera aperture?
f/1.67.
75. Does the main camera have OIS?
Yes. Xiaomi’s primary specification explicitly lists OIS.
76. What is its effective binned pixel size?
POCO advertises a 2.4μm 4-in-1 Super Pixel.
77. What lens construction does it use?
Xiaomi lists a 1G + 6P optical structure for the main camera.
78. Does it autofocus?
Yes. Xiaomi’s detailed FAQ lists AF on the main camera.
79. What is Light Fusion 950?
POCO describes it as its flagship imaging sensor platform with high dynamic range and strong light capture.
80. Does POCO advertise high dynamic range?
Yes. POCO claims approximately 13.5EV dynamic range for the Light Fusion 950 implementation under its internal methodology.
5× Periscope Telephoto
81. Does it have a real periscope telephoto camera?
Yes. The F8 Ultra uses a dedicated 50MP periscope telephoto camera.
82. What is its equivalent focal length?
Approximately 115mm equivalent.
83. What is the optical zoom?
5× optical zoom relative to the main camera.
84. What is its aperture?
f/3.0.
85. Does the telephoto have OIS?
Yes.
86. How close can the telephoto focus?
Xiaomi’s technical FAQ lists a recommended focusing range starting at approximately 30cm.
87. Does POCO advertise 10× zoom?
Yes. POCO markets 10× lossless zoom, which is computational/in-sensor rather than a second physical 10× lens.
88. What is the maximum photo zoom?
Xiaomi’s technical FAQ lists a photo range extending up to 100×, with only native positions counted as optical.
Ultrawide & Front Camera
89. What is the ultrawide-camera resolution?
50MP.
90. Which ultrawide sensor does it use?
Xiaomi’s detailed FAQ identifies the OmniVision OV50M.
91. What is its aperture?
f/2.4.
92. What is its field of view?
Xiaomi’s FAQ lists approximately 102°.
93. What is the selfie-camera resolution?
32MP.
94. Which front sensor is used?
Xiaomi identifies the OmniVision OV32D.
95. Can the front camera record 4K?
Yes. This is an important advantage over the F8 Pro: the F8 Ultra front camera supports 4K at 30fps.
Video, Battery & Connectivity
96. What is the maximum rear-video resolution?
The rear system supports 8K at 30fps, plus 4K at 30/60fps.
97. What battery does it use?
The phone has a 6500mAh typical-capacity dual-cell lithium-ion polymer battery. Xiaomi’s FAQ lists 6330mAh rated capacity. POCO markets it as a high-energy-density silicon-carbon battery.
98. What charging technologies are supported?
The F8 Ultra supports 100W wired HyperCharge and 50W wireless HyperCharge. POCO reports approximately 38 minutes for a full wired charge and approximately 31 minutes to 50% wirelessly under its laboratory conditions.
99. Does it support reverse charging?
Xiaomi’s primary global specification explicitly lists up to 22.5W wired reverse charging. Xiaomi’s detailed FAQ separately contains a contradictory statement claiming 22.5W reverse wireless charging. For a retailer specification, I recommend following the primary global spec and product page: up to 22.5W wired reverse charging.
100. What other major connectivity and premium features should buyers know?
The F8 Ultra supports Wi-Fi 7, MLO, 2×2 MIMO, Bluetooth 6.0, Dual Bluetooth, aptX/aptX HD/aptX Adaptive/LDAC/LHDC 5.0/LC3/Auracast/ASHA/MIHC, NFC, IR blaster, dual-frequency GNSS, USB-C 3.2 Gen 1, OTG, DisplayPort Alt Mode and DP 1.4 wired video output, ultrasonic in-display fingerprint recognition, AI face unlock, Sound by Bose, symmetrical stereo speakers with an independent subwoofer, a three-microphone array and IP68 protection.
Factory-unlocked status does not guarantee activation with every carrier. Xiaomi’s global model supports numerous U.S.-relevant LTE and 5G bands—including LTE B2/B4/B5/B66/B71 and 5G n2/n5/n66/n71/n77—but IMEI acceptance, VoLTE/VoNR/IMS provisioning, eSIM eligibility and carrier certification remain separate factors.