Xiaomi
Xiaomi Poco X8 PRO MAX 5G 512GB ROM 12GB RAM Dual SIM GSM Unlocked - Black
Xiaomi Poco X8 PRO MAX 5G 512GB ROM 12GB RAM Dual SIM GSM Unlocked - Black
SKU: SKU:X-POCO-X8PROMX-5G-12-512-BK
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POCO X8 Pro Max 5G AI
Flagship Gaming Power. Massive Battery. Black Edition.
Built for demanding mobile gamers with Dimensity 9500s flagship performance, advanced IceLoop cooling, WildBoost optimization, a massive 8500mAh battery, and ultra-fast 100W HyperCharge.
Ultra-Fast Flagship Performance
The POCO X8 Pro Max is engineered for high-performance gaming, intensive multitasking, streaming, and demanding everyday applications.
Dimensity 9500s 3nm Flagship Platform
Built on a second-generation 3nm manufacturing process, the Dimensity 9500s features an all-big-core architecture with clock speeds reaching up to 3.73GHz for exceptional speed, efficiency, and responsiveness.
Built for Serious Mobile Gaming
Powerful flagship processing and intelligent performance optimization work together to deliver fast response, sustained performance, and smoother gameplay during demanding gaming sessions.
POCO 3D IceLoop Cooling System
An advanced cooling architecture helps efficiently transfer heat away from critical internal components, allowing the phone to maintain stronger performance under demanding workloads.
5800mm² Ultra-Large LHP Area
The ultra-large 3D IceLoop cooling pump covers core heat sources and works together with an expansive graphite layer to maximize heat dissipation.
11,000mm² Graphite Layer
A large graphite heat-dissipation layer further improves thermal management, helping maintain consistent performance during gaming and other intensive tasks.
WildBoost Optimization
Intelligent WildBoost optimization is designed to improve gaming stability by managing performance requirements during demanding gameplay.
Frame Recovery Under Heavy Load
The system predicts per-frame computing demand during each frame-generation cycle, allowing proactive intervention to help prevent frame drops and maintain higher, more stable frame rates.
Performance Meets Efficiency
Advanced processing and gaming optimization help balance high performance with reduced power consumption, even during demanding workloads.
Massive 8500mAh Battery
The huge 8500mAh typical battery capacity is designed for exceptional endurance, giving you more time for gaming, streaming, browsing, and everyday use between charges.
High-Density Silicon-Carbon Battery
Featuring 16% ultra-high silicon-carbon content and energy density of 847 Wh/L, the advanced battery design delivers substantial capacity for extended daily use.
100W HyperCharge
Ultra-fast 100W HyperCharge provides on-demand power, capable of recharging the battery to 50% in approximately 24 minutes under supported charging conditions.
100W PPS Universal Charging
Support for the 100W PPS universal charging protocol provides greater flexibility with compatible fast-charging equipment.
Immersive 6.83” Display
The expansive 6.83-inch screen gives games, movies, videos, apps, and everyday content more room to shine for an immersive mobile experience.
50MP Camera
Capture detailed everyday photos and memorable moments with the high-resolution 50MP camera system.
512GB Storage + 12GB RAM
Massive internal storage provides plenty of room for large games, apps, photos, videos, and files, while 12GB of RAM supports demanding multitasking.
Fast 5G Connectivity
Enjoy high-speed mobile connectivity for online gaming, streaming, downloads, video calls, and everyday use on compatible 5G networks.
Dual SIM Flexibility
Dual SIM support makes it convenient to manage two mobile lines for personal use, business, or international travel.
Black Edition
A sleek Black finish complements the powerful gaming-focused hardware with a clean and modern appearance.
Unlocked for GSM & Global Use
Designed for use with compatible GSM carriers including T-Mobile, Mint Mobile, Tello, and supported networks worldwide. Carrier compatibility depends on network bands and local carrier requirements.
Important Information
- Model: Xiaomi POCO X8 Pro Max 5G AI
- Color: Black
- 512GB Internal Storage
- 12GB RAM
- 6.83” Display
- Dimensity 9500s 3nm Flagship Platform
- All-Big-Core CPU Architecture
- Maximum Clock Speed up to 3.73GHz
- 50MP Camera
- POCO 3D IceLoop Cooling System
- 5800mm² Ultra-Large LHP Cooling Area
- 11,000mm² Graphite Heat-Dissipation Layer
- WildBoost Gaming Optimization
- 8500mAh Typical Battery
- 16% Silicon-Carbon Battery Content
- 100W HyperCharge
- 100W PPS Universal Charging Support
- Dual SIM
- Factory Unlocked – GSM
- Compatible with T-Mobile, Mint Mobile, Tello and supported global GSM networks
- Please confirm carrier compatibility before purchase
POCO X8 Pro Max 5G AI – Built for Gaming
Flagship 3nm performance, advanced IceLoop cooling, WildBoost gaming optimization, a huge 8500mAh battery, 100W HyperCharge, and massive 512GB storage make the POCO X8 Pro Max a powerhouse for demanding mobile users.
| Network | Technology | GSM / HSPA / LTE / 5G |
|---|
| Launch | Announced | 2026, March 17 |
|---|---|---|
| Status | Available. Released 2026, March 17 |
| Body | Dimensions | 162.9 x 77.9 x 8.2 mm (6.41 x 3.07 x 0.32 in) |
|---|---|---|
| Weight | 218 g (7.69 oz) | |
| Build | Glass front (Gorilla Glass 7i), aluminum frame, glass-fiber reinforced plastic back | |
| SIM | Nano-SIM + Nano-SIM + eSIM (max 2 at a time) | |
| IP68/IP69K dust tight and water resistant (high pressure water jets; immersible up to 1.5m for 30 min) IP69K (market/region dependent) |
| Display | Type | AMOLED, 68B colors, 120Hz, 3840Hz PWM, Dolby Vision, HDR10+, 2000 nits (HBM), 3500 nits (peak) |
|---|---|---|
| Size | 6.83 inches, 114.5 cm2 (~90.3% screen-to-body ratio) | |
| Resolution | 1280 x 2772 pixels, 19.5:9 ratio (~447 ppi density) | |
| Protection | Corning Gorilla Glass 7i, Mohs level 5 |
| Platform | OS | Android 16, HyperOS 3 |
|---|---|---|
| Chipset | Mediatek Dimensity 9500s (3 nm) | |
| CPU | Octa-core (1x3.73 GHz Cortex-X925 & 3x3.3 GHz Cortex-X4 & 4x2.4 GHz Cortex-A720) | |
| GPU | Immortalis-G925 MC12 |
| Memory | Card slot | No |
|---|---|---|
| Internal | 256GB 12GB RAM, 512GB 12GB RAM | |
| UFS 4.1 |
| Main Camera | Dual | 50 MP, f/1.5, 26mm (wide), 1/1.95", 0.8µm, PDAF, OIS 8 MP, f/2.2, 15mm (ultrawide), 1/4.0", 1.12µm |
|---|---|---|
| Features | LED flash, HDR, panorama | |
| Video | 4K@30/60fps, 1080p@30/60/120/240/960fps, gyro-EIS, HDR10+ |
| Selfie camera | Single | 20 MP, f/2.2, (wide), 1/4" |
|---|---|---|
| Video | 1080p@30/60fps |
| Sound | Loudspeaker | Yes, with stereo speakers (with Dolby Atmos) |
|---|---|---|
| 3.5mm jack | No | |
| 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, LHDC 5, Auracast, ASHA | |
| Positioning | GPS (L1+L5), BDS (B1I+B1c+B2a+B2b), GALILEO (E1+E5a+E5b), QZSS (L1+L5), NavIC (L1+L5), GLONASS | |
| NFC | Yes (market/region dependent) | |
| Infrared port | Yes | |
| Radio | No | |
| USB | USB Type-C 2.0, OTG |
| Features | Sensors | Fingerprint (under display, ultrasonic), accelerometer, gyro, compass, proximity |
|---|
| Battery | Type | Si/C Li-Ion 8500 mAh or 9000 mAh (market/region dependent) |
|---|---|---|
| Charging | 100W wired, 100W PPS, PD3.0, PPS, 50% in 24 min 27W reverse wired Bypass charging |
| Misc | Colors | Black, White, Blue |
|---|---|---|
| Models | 2602BPC18G |
| Our Tests | Performance | AnTuTu: 2445108 (v10), 2791128 (v11) GeekBench: 8539 (v6) 3DMark: 6229 (Wild Life Extreme) |
|---|---|---|
| Display | 1114 nits max brightness (measured) | |
| Loudspeaker | -20.9 LUFS (Excellent) | |
| Battery |
Active use score 25:22h
|
| EU LABEL | Energy | Class B |
|---|---|---|
| Battery | 80:14h endurance, 1000 cycles | |
| Free fall | Class B (180 falls) | |
| Repairability | Class C |
| Warranty | No Warranty |
|---|
| 1pcs | Xiaomi Poco X8 PRO MAX 5G |
| 1pcs | Battery. |
| 1pcs | Home Charger. |
| 1pcs | Headphone. |
| 1pcs | Data Cable. |
| 1pcs | User Manual. |
1. Which exact phone is this?
This is the POCO X8 Pro Max 5G with 12GB RAM, 512GB storage and Black finish. POCO officially offers a 12GB+512GB configuration.
2. Is Black an official color?
Yes. Xiaomi’s Global technical FAQ lists Black, White and Blue for this model; color availability can vary by market.
3. Is 12GB+512GB an official configuration?
Yes. The official specifications list 12GB+256GB and 12GB+512GB.
4. What RAM technology does it use?
LPDDR5X running up to 9600Mbps.
5. What storage technology does it use?
UFS 4.1.
6. Does this exact 512GB version support Memory Extension?
Yes. The 12GB/512GB version can use 4GB, 6GB, 8GB or 12GB of Memory Extension; Xiaomi says the default is 6GB.
7. Does Memory Extension mean it has 24GB physical RAM?
No. It has 12GB physical LPDDR5X; the additional amount uses storage-backed virtual memory.
8. Does it have UFS Storage Extension?
Yes. Xiaomi says the 512GB version supports up to 16GB UFS Storage Extension.
9. Does it have microSD expansion?
No. Xiaomi explicitly says SD-card/expanded storage is unsupported.
10. Is the full 512GB available to the customer?
No. System files and preinstalled software use part of the advertised capacity.
Dimensity 9500s platform
11. Which chipset powers the phone?
The MediaTek Dimensity 9500s.
12. What manufacturing process does it use?
Second-generation 3nm TSMC technology.
13. How many CPU cores are there?
Eight.
14. What is the CPU configuration?
1× Cortex-X925 up to 3.73GHz + 3× Cortex-X4 up to 3.3GHz + 4× Cortex-A720 up to 2.4GHz.
15. What is the maximum CPU speed?
Up to 3.73GHz.
16. Is it an all-big-core design?
Yes. POCO markets the 9500s implementation as a 4+4 all-big-core architecture.
17. Which GPU does it use?
Immortalis-G925 MC11.
18. Is the MC12 value on MyWorldPhone correct?
No. Your current page lists Immortalis-G925 MC12, while POCO’s current official specification says MC11.
19. Which NPU does it use?
MediaTek NPU 890.
20. Does it support WildBoost?
Yes. Xiaomi’s official FAQ confirms WildBoost support.
Gaming & cooling
21. What cooling system does it use?
POCO 3D IceLoop cooling.
22. How large is the main LHP cooling area?
Approximately 5800mm².
23. How large is the graphite layer?
Approximately 11,000mm².
24. What thermal conductivity does POCO advertise?
Up to 1800W/m·K for the high-thermal-conductivity graphite used in POCO’s internal description.
25. Does POCO publish a temperature-reduction claim?
Yes, up to about 3°C lower SoC temperature in its own laboratory comparison. This should always be presented as a POCO internal test.
26. Does it support Game Turbo?
Yes.
27. Does the phone support 120fps gaming?
Xiaomi’s FAQ lists supported 120fps modes for selected games such as PUBG, CODM, MLBB and LOLM, depending on graphics settings and software.
28. Does it support 120fps Smart Frame Rate?
POCO markets up to 120FPS Smart Frame Rate in supported scenarios.
29. Does Xiaomi's FAQ call this actual game frame insertion?
Interestingly, the detailed FAQ says game frame insertion is not supported. So I would use POCO’s safer marketing term Smart Frame Rate rather than promising universal frame interpolation.
30. Should the page claim every game runs at 120fps?
No. Performance depends on the game, software version, rendering settings and thermal conditions.
Display
31. How large is the display?
6.83 inches.
32. Is the display flat or curved?
Flat. Xiaomi’s detailed FAQ explicitly confirms this.
33. Is it a flexible panel?
Yes. Xiaomi says it is a flexible AMOLED panel, even though the visible display surface is flat.
34. What is the resolution?
2772 × 1280.
35. Is this marketed as 1.5K?
Yes.
36. What is the official screen-to-body ratio?
94.27%.
37. Is the 90.3% currently on MyWorldPhone correct?
No. Your current page says approximately 90.3%, but Xiaomi’s current official FAQ gives 94.27%.
38. What refresh rate does it support?
Up to 120Hz in supported applications.
39. What is the touch-sampling rate?
Up to 480Hz, activated in Game Turbo according to POCO’s specification.
40. What is the instantaneous touch-sampling rate?
Up to 2560Hz in Game Turbo.
Display quality & protection
41. What typical brightness does POCO list?
The primary specification lists 800 nits typical.
42. What HBM brightness does it support?
Up to 2000 nits HBM.
43. What is peak brightness?
Up to 3500 nits, covering approximately 25% of the display area under qualifying conditions.
44. How many colors does it support?
12-bit / approximately 68.7 billion colors.
45. What is the contrast ratio?
8,000,000:1.
46. Does it support HDR10+?
Yes.
47. Does it support Dolby Vision?
Yes.
48. What dimming technology does it use?
DC dimming at higher brightness and 3840Hz high-frequency PWM at lower brightness.
49. Does it support Wet Touch?
Yes—Wet Touch 2.0.
50. What protects the screen?
Corning Gorilla Glass 7i, with an oleophobic coating.
Body & durability
51. What are the dimensions?
162.9 × 77.9 × 8.2mm.
52. How much does it weigh?
218g.
53. What rear material does POCO advertise?
An ultra-tough fiberglass back panel.
54. What frame does it use?
POCO describes a high-strength metal frame. I would use that wording rather than asserting aluminum unless your exact manufacturer documentation states it.
55. Does it have SGS durability certification?
Yes. POCO advertises SGS 5-star Premium Performance Certification for drop, bending and crush resistance.
56. What IP rating does it have?
Official Global documentation gives IP68.
57. What immersion test does POCO publish?
Static freshwater up to 2 meters for up to 30 minutes under POCO laboratory conditions.
58. Is the IP69K claim on your current page manufacturer-supported?
Not by the current Global POCO specification or official Global FAQ I checked. Your page currently adds IP69K, but the official Global documentation states IP68.
59. Is the 1.5m immersion figure on MyWorldPhone correct?
Not for the current official Global POCO specification. POCO states 2m for 30 minutes.
60. Is it waterproof?
No. Xiaomi specifically warns that resistance can deteriorate and advises against beach or pool use.
Rear camera system
61. How many rear cameras does the X8 Pro Max actually have?
Two. This is important: the dual-camera ALT text on your page is correct.
62. What are the two cameras?
50MP main + 8MP ultrawide.
63. What is the main sensor marketed as?
Light Fusion 600.
64. Which underlying sensor does Xiaomi identify?
SmartSens SC532HS.
65. What is the main sensor size?
1/1.95 inch.
66. What is its aperture?
f/1.5.
67. Does the main camera have OIS?
Yes.
68. What is the native pixel size?
0.8µm, with a marketed 1.6µm 4-in-1 Super Pixel.
69. How many lens elements does the main camera use?
6P.
70. Does the main camera autofocus?
Yes. Xiaomi lists AF for the main camera.
Ultrawide, zoom & video
71. Which sensor is used for the ultrawide?
SmartSens SC821.
72. What is the ultrawide resolution?
8MP.
73. What is its aperture?
f/2.2.
74. What is its sensor size?
1/4 inch.
75. What is the ultrawide field of view?
Approximately 112° according to Xiaomi’s technical FAQ.
76. Does the ultrawide autofocus?
No. It is fixed focus.
77. Does this phone have a telephoto camera?
No.
78. What does POCO mean by “2× optical-level zoom”?
POCO uses that marketing phrase for image quality at 2×, but Xiaomi’s technical FAQ explicitly says only 0.6× and 1× are optical positions and all higher zoom levels are digital. So do not describe 2× as a physical optical telephoto.
79. What is the maximum photo zoom range?
Up to 60× digital zoom.
80. What is maximum rear-video resolution?
4K at 30fps or 60fps.
Front camera
81. What front-camera resolution should the retail page use?
I recommend 20MP, because POCO’s primary Global specification and UK specification both list 20MP.
82. Why does Xiaomi’s FAQ say 32MP?
There is an internal conflict: the same technical FAQ identifies OV20B, 1/4-inch, 0.7µm hardware but later says 32MP. POCO’s primary specifications say 20MP, so the 32MP FAQ line appears inconsistent.
83. Who supplies the front sensor?
OmniVision.
84. What is the sensor model?
OV20B.
85. What is the front sensor size?
1/4 inch.
86. What is the front pixel size?
0.7µm.
87. Does the selfie camera autofocus?
No. Xiaomi lists fixed focus.
88. How many lens elements does the front camera use?
4P.
89. What is maximum front video?
1080p at 60fps.
90. Does the front camera support EIS?
Yes.
Battery, charging & connectivity
91. What is the official Global battery capacity?
8500mAh typical / 8330mAh rated, using a dual-cell lithium-polymer battery.
92. Should your exact page say “8500mAh or 9000mAh”?
I would not. Your page currently mixes both values, while the current Global technical specification for this model says 8500mAh typical. Use the battery value matching the exact physical regional unit; for this Global-style SKU, 8500mAh is the manufacturer-grounded value.
93. What is maximum wired charging?
100W HyperCharge.
94. What charging protocols are supported?
PD 2.0, PD 3.0, PPS and MI FC 2.0, plus Xiaomi encrypted fast charging. Xiaomi explicitly says QC2/QC3/QC3+/QC4/QC4+ and UFCS are not supported.
95. How quickly can it reach 50%?
POCO advertises 1% to 50% in approximately 24 minutes under its laboratory conditions.
96. Does it support wireless charging?
No.
97. Does it support reverse charging?
Yes—up to 27W wired reverse charging. It does not support reverse wireless charging.
98. Does it support eSIM?
Yes. The official Global specification supports Nano-SIM + Nano-SIM or Nano-SIM + eSIM, with eSIM dependent on region and carrier.
99. What Wi-Fi and Bluetooth does it support?
Wi-Fi 7 on 2.4GHz and 5GHz, with MLO, 2×2 MIMO and MU-MIMO; Bluetooth 6.0 with Dual-Bluetooth. Importantly, Xiaomi explicitly says aptX, aptX HD and aptX Adaptive are not supported.
100. What other major connectivity/features should buyers know about?
It includes dual-frequency GNSS, NFC where supported, IR blaster, ultrasonic in-display fingerprint recognition, AI Face Unlock, symmetrical stereo speakers, Dolby Atmos, Hi-Res/Hi-Res Wireless certification, 2-mic array, USB-C/OTG, no DisplayPort Alt Mode, Xiaomi HyperOS 3 and no UWB.
Factory-unlocked status does not guarantee activation with every carrier. This international model supports a broad LTE/5G band set plus VoLTE, VoNR and VoWi-Fi, but actual service depends on the exact regional version, IMEI eligibility, carrier certification, IMS provisioning, eSIM availability and current carrier policy.