Phone Comparison - Xiaomi 12X vs Xiaomi 15 Ultra vs Xiaomi 15T

general General Info

Manufacturer Xiaomi Xiaomi Xiaomi
Announced 2021, December 28 February 2025 September 2025
Status Coming soon. Exp. release 2021, December 31 Available - February 2025 Available - September 2025
Price - Rs. 109,999 ($0.00) [Similarly Priced] -
Colors Black, Blue, Pink Black, White, Silver Chrome, Green Black, Gray, Rose Gold
Form Factor Candybar Candybar Candybar
Dimension 152.7 x 69.9 x 8.2 mm
(6.01 x 2.75 x 0.32 in)
161.3 x 75.3 x 9.4 mm
(6.35 x 2.96 x 0.37 in)
163.2 x 78 x 7.5 mm
(6.43 x 3.07 x 0.3 in)
Weight 170 g (6 oz) 226 g or 229 g (7.97 oz or 8.08 oz) 194 g (6.84 oz)
SIM Type Dual SIM (Nano-SIM, dual stand-by) - -
2G Network GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
CDMA2000 1xEV-DO
GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900
3G Network HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100 HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100
4G Network LTE 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 26, 34, 38, 39, 40, 41, 42 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
1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 26, 28, 32, 38, 40, 41, 42, 48, 66, 71
5G Network 1, 3, 5, 8, 28, 38, 40, 41, 77, 78 SA/NSA 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
1, 2, 3, 5, 7, 8, 12, 20, 26, 28, 38, 40, 41, 48, 66, 71, 75, 77, 78 SA/NSA
SAR EU - W/kg (head)
- W/kg (body)
- W/kg (head)
- W/kg (body)
0.99 W/kg (head)
0.99 W/kg (body)
Messaging
Build Features - Fingerprint Sensor (under display, optical)
- Fingerprint Sensor (under display, ultrasonic)
IP68 dust tight and water resistant (immersible up to 1.5m for 30 min)
Aerospace-grade glass fiber
- Fingerprint Sensor (under display, optical)
IP68 dust tight and water resistant (immersible up to 3m for 30 min)

hardware Hardware and OS

OS Android 12 Android 15, up to 4 major Android upgrades Android 15
User Interface MIUI 13 HyperOS 2 HyperOS 2
Processor Octa-core (1x3.2 GHz Kryo 585 & 3x2.42 GHz Kryo 585 & 4x1.80 GHz Kryo 585), Qualcomm SM8250-AC Snapdragon 870 5G (7 nm) Octa-core (2x4.32 GHz Oryon V2 Phoenix L + 6x3.53 GHz Oryon V2 Phoenix M), Qualcomm SM8750-AB Snapdragon 8 Elite (3 nm) Octa-core (1x3.25 GHz Cortex-A725 & 3x3.0 GHz Cortex-A725 & 4x2.1 GHz Cortex-A725), Mediatek Dimensity 8400 Ultra (4 nm)
GPU Adreno 650 Adreno 830 Mali-G720 MC7
RAM 12 GB 16 GB 12 GB
Internal Memory 256 GB 1 TB 512 GB
External Memory No No No

display Display

Type FHD+ OLED Screen
120Hz Refresh Rate
Dolby Vision, HDR10+
1100 nits (peak)
Corning Gorilla Glass Victus
QHD+ LTPO AMOLED Screen
120Hz, Dolby Vision, HDR10+, HDR Vivid, 3200 Nits (peak)
Xiaomi Shield Glass 2.0 Protections
FHD+ AMOLED, 120Hz, 3840Hz PWM
Dolby Vision, HDR10+, 3200 Nits (peak)
Corning Gorilla Glass 7i, Mohs Level 6
Colors 1B Colors 68B colors 68B colors
Size 6.28 inches 6.73 inches 6.83 inches
Resolution 1080 x 2400 pixels (419 ppi) 1440 x 3200 pixels (521 ppi) 1280 x 2772 pixels (447 ppi)
Screen-to-Body Ratio 89.24% 90.17% 90.00%
Multi-Touch yes yes yes

multimedia Multimedia

3.5mm Jack no no no
Radio No No No
Games Yes + Downloadable Yes + Downloadable Yes + Downloadable
Loud Speaker

camera Camera

Rear Camera 50 MP + 13 MP + 5 MP 50 MP + 50 MP + 200 MP + 50 MP 50 MP + 50 MP + 12 MP
Flash Dual-LED Dual-tone Flash No LED Flash
Features 50 MP, f/1.9, 26mm (wide), 1/1.56", 1.0µm, PDAF, OIS
13 MP, f/2.4, 12mm, 123˚ (ultrawide), 1/3.06", 1.12µm
5 MP, 50mm (telephoto macro), AF
HDR, Panorama
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)
Laser AF, color spectrum sensor, Leica lenses, Dual-LED flash, HDR, panorama, 67mm filter ring holder (optional)
50 MP, f/1.7, 23mm (wide), 1/1.55", 1.0µm, PDAF, OIS
50 MP, f/1.9, 46mm (telephoto), 1/2.76", 0.64µm, PDAF, 2x optical zoom
12 MP, f/2.2, 15mm, 120˚ (ultrawide), 1/3.06", 1.12µm
Leica Lens, Color Spectrum Sensor, Ultra HDR, HDR, Panorama
Video 8K@24fps (HDR10), 4K@30fps (HDR10+), 1080p@30/120/240/960fps, 720p@1920fps, gyro-EIS 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) 4K@30/60fps, 1080p@30/60/120/240/960fps, gyro-EIS, 10-bit Rec. 2020, HDR10+
Front Camera 32 MP, 26mm (wide), 0.7µm
HDR, panorama
1080p@30/60fps, 720p@120fps [Similar]
32 MP, f/2.0, 21mm (wide), 1/3.14", 0.7µm
HDR, panorama
4K@30/60fps, 1080p@30/60fps, gyro-EIS [Similar]
32 MP, f/2.2, 21mm (wide), 1/3.44", 0.64µm
HDR
4K@30fps, 1080p@30/60fps, HDR10+ [Similar]

connectivity Connectivity and Data Rate

GPRS Yes Yes Yes
Edge Yes Yes Yes
3G HSPA 42.2/5.76 Mbps, LTE-A, 5G HSPA, LTE, 5G HSPA, LTE, 5G
Bluetooth 5.2, A2DP, LE, aptX HD, aptX Adaptive 6.0, A2DP, LE, aptX HD, aptX Adaptive, LHDC 5 6.0, A2DP, LE
Wi-Fi Wi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct, hotspot Wi-Fi 802.11 a/b/g/n/ac/6e/7, dual-band or tri-band, Wi-Fi Direct Wi-Fi 802.11 a/b/g/n/ac/6e, dual-band, Wi-Fi Direct
USB USB Type-C 2.0, USB On-The-Go USB Type-C 3.2 Gen 2, DisplayPort, OTG USB Type-C 2.0, OTG
GPS Yes, with dual-band A-GPS, GLONASS, GALILEO, BDS, QZSS, NavIC GPS (L1+L5), BDS (B1I+B1c+B2a), GALILEO (E1+E5a), QZSS (L1+L5), NavIC (L5), GLONASS GPS (L1+L5), BDS (B1I+B1c+B2a), GALILEO (E1+E5a), QZSS (L1+L5), NavIC (L5), GLONASS
Browser Yes Yes Yes

memory User Memory

Internal 256 GB, 12 GB RAM or 256 GB, 8 GB RAM or 128 GB, 8 GB RAM UFS 3.1 1 TB, 16 GB RAM or 512 GB, 16 GB RAM or 256 GB, 12 GB RAM UFS 4.1 512 GB, 12 GB RAM or 256 GB, 12 GB RAM UFS 4.1
Expandable Storage No No No
USB OTG Supported Supported Supported

Apps Sensors

Fingerprint fingerprint supported fingerprint supported fingerprint supported
Proximity Sensor proximity sensor not present proximity sensor present proximity sensor present
Accelerometer Sensor accelerometer sensor present accelerometer sensor present accelerometer sensor present
Magnetic-Field Sensor (Compass) magnetic field sensor present magnetic field sensor present magnetic field sensor present
Gyroscope Sensor gyroscope sensor present gyroscope sensor present gyroscope sensor present
Barometer Sensor barometer sensor not present barometer sensor present barometer sensor not present
NFC NFC supported NFC supported NFC not supported

battery Battery

Type Non-removable Li-Po Battery
Fast battery Charging 67W, 100% in 39 min (advertised)
Power Delivery 3.0
Quick Charge 4+
Non-removable Si/C Battery
Fast Battery Charging 90W wired, PD3.0, QC3+
80W wireless
10W reverse wireless
Non-removable Li-ion Battery
Fast Battery Charging 67W wired, PD3.0, 100% in 50 min
Capacity 4500 mAh 6000 mAh 5500 mAh
Stand by - - -
Talk Time - - -