Screen size
15 Ultra6.7"
Poco X8 PowerWinner: 6.8"+1.5%
Quick verdict
15 Ultra leads the measured specs 9-6.
Measured wins
15 Ultra
9
spec wins
Overall winner
Ties
8
equal specs
Poco X8 Power
6
spec wins
Screen size
Technology
15 Ultra
GSM / HSPA / LTE / 5G
Poco X8 Power
GSM / HSPA / LTE / 5G
2G bands
15 Ultra
GSM 850 / 900 / 1800 / 1900
Poco X8 Power
GSM 850 / 900 / 1800 / 1900
3G bands
15 Ultra
HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100
Poco X8 Power
HSDPA 850 / 1900 / 2100
4G bands
15 Ultra
1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 38, 39, 40, 41, 42, 48, 66, 71 - International, 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 34, 38, 39, 40, 41, 42, 48, 66 - China
Resolution
Refresh rate
equal specsPeak brightness
Pixel density
CPU speed
RAM
Storage
Main camera
equal specsFront camera
equal specsBattery
Wired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
equal specsUSB
5G support
equal specsNFC
3.5mm jack
equal specsSD card
equal specsStereo speakers
equal specsPoco X8 Power
LTE
5G bands
15 Ultra
1, 2, 3, 5, 7, 8, 12, 20, 25, 26, 28, 38, 40, 41, 48, 66, 71, 75, 77, 78, 79 SA/NSA - International, 1, 2, 3, 5, 7, 8, 12, 20, 26, 28, 38, 40, 41, 48, 66, 77, 78, 79, 80, 81, 83, 84, 89 SA/NSA - China
Poco X8 Power
SA/NSA
Speed
15 Ultra
HSPA, LTE, 5G
Poco X8 Power
HSPA, LTE, 5G
Announced
15 Ultra
2025, February 27
Poco X8 Power
2026, September 04
Status
15 Ultra
Available. Released 2025, February 27
Poco X8 Power
Available. Released 2026, September 11
Dimensions
15 Ultra
161.3 x 75.3 x 9.4 mm (6.35 x 2.96 x 0.37 in)
Poco X8 Power
163.4 x 78.3 x 8.6 mm (6.43 x 3.08 x 0.34 in)
Weight
15 Ultra
226 g or 229 g (7.97 oz)
Poco X8 Power
229 g (8.08 oz)
Build
15 Ultra
Glass front, fiber-reinforced plastic back or silicone polymer back (eco leather), aluminum frame
Poco X8 Power
Glass front (Gorilla Glass Victus 2), plastic back, plastic frame
SIM
15 Ultra
· Nano-SIM + Nano-SIM· Nano-SIM + Nano-SIM + eSIM + eSIM (max 2 at a time)
Poco X8 Power
Nano-SIM + Nano-SIM + eSIM + eSIM (max 2 at a time)
Other
15 Ultra
IP68 dust tight and water resistant (immersible up to 1.5m for 30 min) Aerospace-grade glass fiber
Poco X8 Power
IP68/IP69K dust tight and water resistant (high pressure water jets; immersible up to 2m for 30 min) Drop resistant up to 3m
Type
15 Ultra
LTPO AMOLED, 68B colors, 120Hz, 1920Hz PWM, Dolby Vision, HDR10+, HDR Vivid, 3200 nits (peak)
Poco X8 Power
AMOLED, 68B colors, 120Hz, 3840Hz PWM, HDR10+, Dolby Vision, 1060 nits (typ), 2000 nits (HBM), 3500 nits (peak)
Size
15 Ultra
6.73 inches, 108.9 cm2 (~89.7% screen-to-body ratio)
Poco X8 Power
6.83 inches, 114.5 cm2 (~89.5% screen-to-body ratio)
Resolution
15 Ultra
1440 x 3200 pixels, 20:9 ratio (~522 ppi density)
Poco X8 Power
1280 x 2772 pixels, 19.5:9 ratio (~447 ppi density)
Protection
15 Ultra
Xiaomi Shield Glass 2.0, Mohs level 6
Poco X8 Power
Corning Gorilla Glass Victus 2
OS
15 Ultra
Android 15, up to 4 major Android upgrades, HyperOS 3
Poco X8 Power
Android 16, up to 4 major OS updates, HyperOS 3
Chipset
15 Ultra
Qualcomm SM8750-AB Snapdragon 8 Elite (3 nm)
Poco X8 Power
Qualcomm SM6850 Snapdragon 6 Gen 5 (4 nm)
CPU
15 Ultra
Octa-core (2x4.32 GHz Oryon V2 Phoenix L + 6x3.53 GHz Oryon V2 Phoenix M)
Poco X8 Power
Octa-core (4x2.6 GHz Cortex-A78 & 4x2.0 GHz Cortex-A55)
GPU
15 Ultra
Adreno 830
Poco X8 Power
Adreno 812
Card slot
15 Ultra
No
Poco X8 Power
No
Internal
15 Ultra
256GB 12GB RAM, 512GB 16GB RAM, 1TB 16GB RAM
Poco X8 Power
128GB 8GB RAM, 256GB 8GB RAM
Other
15 Ultra
UFS 4.1
Poco X8 Power
UFS 2.2
Quad
15 Ultra
50 MP, f/1.6, 23mm (wide), 1.0"-type, 1.6µm, dual pixel PDAF, OIS 50 MP, f/1.8, 70mm (telephoto), 1/2.51", 0.7µm, dual pixel PDAF (10cm - ∞), OIS, 3x optical zoom 200 MP, f/2.6, 100mm (periscope telephoto), 1/1.4", 0.56µm, multi-directional PDAF, OIS, 4.3x optical zoom 50 MP, f/2.2, 14mm, 115˚ (ultrawide), 1/2.76", 0.64µm, dual pixel PDAF TOF 3D, (depth)
Poco X8 Power
-
Features
15 Ultra
Laser AF, color spectrum sensor, Leica lenses, Dual-LED flash, HDR, panorama, 67mm filter ring holder (optional)
Poco X8 Power
LED flash, HDR, panorama
Video
15 Ultra
8K@30fps, 4K@30/60/120fps, 1080p@30/60/120/240/480/960/1920fps, gyro-EIS, Dolby Vision HDR 10-bit rec. (4K@60fps, 1080p)
Poco X8 Power
4K@30fps, 1080p@30/60fps, gyro-EIS, OIS
Dual
15 Ultra
-
Poco X8 Power
50 MP, f/1.5, 26mm (wide), 1/1.95", 0.8µm, PDAF, OIS 8 MP, f/2.2, 15mm, 120˚ (ultrawide), 1/4.0", 1.12µm
Single
15 Ultra
32 MP, f/2.0, 21mm (wide), 1/3.14", 0.7µm
Poco X8 Power
32 MP, f/2.2, (wide), 1/3.6", 0.61µm
Features
15 Ultra
HDR, panorama
Poco X8 Power
HDR, panorama
Video
15 Ultra
4K@30/60fps, 1080p@30/60fps, gyro-EIS
Poco X8 Power
4K@30fps, 1080p@30/60fps, gyro-EIS
Loudspeaker
15 Ultra
Yes, with stereo speakers
Poco X8 Power
Yes, with stereo speakers (with Dolby Atmos)
3.5mm jack
15 Ultra
No
Poco X8 Power
No
Other
15 Ultra
24-bit/192kHz Hi-Res & Hi-Res Wireless audio Qualcomm XPAN (24-bit/96kHz audio)
Poco X8 Power
24-bit/192kHz Hi-Res & Hi-Res wireless audio
WLAN
15 Ultra
Wi-Fi 802.11 a/b/g/n/ac/6e/7, dual-band or tri-band, Wi-Fi Direct
Poco X8 Power
Yes
Bluetooth
15 Ultra
6.0, A2DP, LE, aptX HD, aptX Adaptive, LHDC 5
Poco X8 Power
6.0, A2DP, LE
Positioning
15 Ultra
GPS (L1+L5), BDS (B1I+B1c+B2a), GALILEO (E1+E5a), QZSS (L1+L5), NavIC (L5), GLONASS
Poco X8 Power
GPS, GALILEO, GLONASS, QZSS, BDS
NFC
15 Ultra
Yes
Poco X8 Power
No
Infrared port
15 Ultra
Yes
Poco X8 Power
Yes
Radio
15 Ultra
No
Poco X8 Power
No
USB
15 Ultra
USB Type-C 3.2 Gen 2, DisplayPort, OTG
Poco X8 Power
USB Type-C 2.0, OTG
Sensors
15 Ultra
Fingerprint (under display, ultrasonic), accelerometer, proximity, gyro, compass, barometer
Poco X8 Power
Fingerprint (under display, optical), accelerometer, gyro, compass, proximity (ultrasonic)
Other
15 Ultra
Two-way satellite communication
Poco X8 Power
-
Type
15 Ultra
Market-dependent versions:· Si/C Li-Ion 5410 mAh - Global· Si/C Li-Ion 6000 mAh - China
Poco X8 Power
Si/C Li-Ion 10000 mAh
Charging
15 Ultra
90W wired, PD3.0, QC3+ 80W wireless 10W reverse wireless
Poco X8 Power
100W wired, PD3.0, PPS 27W reverse wired Bypass charging
Colors
15 Ultra
Black, White, Silver Chrome, Green
Poco X8 Power
Black, Yellow
Models
15 Ultra
25010PN30G
Poco X8 Power
-
SAR EU
15 Ultra
1.00 W/kg (head) 1.00 W/kg (body)
Poco X8 Power
-
Price
15 Ultra
$ 1,468.84 / £ 929.00 / € 1,049.00
Poco X8 Power
About 330 EUR