Screen size
Redmi K50 Ultra6.7"
Redmi Note 15 SpecialWinner: 6.8"+1.5%
Quick verdict
Redmi K50 Ultra leads the measured specs 10-7.
Measured wins
Redmi K50 Ultra
10
spec wins
Overall winner
Ties
6
equal specs
Redmi Note 15 Special
7
spec wins
Screen size
Technology
Redmi K50 Ultra
GSM / CDMA / HSPA / CDMA2000 / LTE / 5G
Redmi Note 15 Special
GSM / HSPA / LTE / 5G
2G bands
Redmi K50 Ultra
GSM 850 / 900 / 1800 / 1900 , CDMA 800
Redmi Note 15 Special
GSM 850 / 900 / 1800 / 1900
3G bands
Redmi K50 Ultra
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 , CDMA2000 1x
Redmi Note 15 Special
HSDPA 850 / 900 / 2100
4G bands
Redmi K50 Ultra
Resolution
Refresh rate
Peak brightness
Pixel density
CPU speed
RAM
Storage
equal specsMain camera
Front camera
equal specsBattery
Wired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
USB
equal specs5G support
equal specsNFC
3.5mm jack
equal specsSD card
Stereo speakers
equal specs1, 3, 4, 5, 8, 18, 19, 26, 34, 38, 39, 40, 41, 42
Redmi Note 15 Special
1, 3, 5, 8, 28, 40, 41
5G bands
Redmi K50 Ultra
1, 3, 5, 8, 28, 38, 40, 41, 77, 78 SA/NSA
Redmi Note 15 Special
1, 3, 5, 8, 28, 40, 78 SA/NSA
Speed
Redmi K50 Ultra
HSPA, LTE, 5G
Redmi Note 15 Special
HSPA, LTE, 5G
Announced
Redmi K50 Ultra
2022, August 11
Redmi Note 15 Special
2026, April 02
Status
Redmi K50 Ultra
Available. Released 2022, August 25
Redmi Note 15 Special
Released Apr 7, 2026
Dimensions
Redmi K50 Ultra
163.1 x 75.9 x 8.6 mm (6.42 x 2.99 x 0.34 in)
Redmi Note 15 Special
164.0 x 75.4 x 7.4 mm or 7.8 mm
Weight
Redmi K50 Ultra
202 g (7.13 oz)
Redmi Note 15 Special
178 g or 182 g (6.28 oz)
SIM
Redmi K50 Ultra
Nano-SIM + Nano-SIM
Redmi Note 15 Special
Nano-SIM + Nano-SIM
Other
Redmi K50 Ultra
-
Redmi Note 15 Special
Drop resistant up to 1.7m MIL-STD-810H compliant* * does not guarantee ruggedness or use in extreme conditions IP66 dust tight and water resistant (high pressure water jets)
Type
Redmi K50 Ultra
OLED, 68B colors, 144Hz, HDR10+, Dolby Vision
Redmi Note 15 Special
AMOLED, 68B colors, 120Hz, 3840Hz PWM, 800 nits (typ), 3200 nits (peak)
Size
Redmi K50 Ultra
6.67 inches, 107.4 cm2 (~86.7% screen-to-body ratio)
Redmi Note 15 Special
6.77 inches, 110.9 cm2 (~89.7% screen-to-body ratio)
Resolution
Redmi K50 Ultra
1220 x 2712 pixels, 20:9 ratio (~446 ppi density)
Redmi Note 15 Special
1080 x 2392 pixels (~388 ppi density)
OS
Redmi K50 Ultra
Android 12, MIUI 13
Redmi Note 15 Special
Android 15, up to 4 major Android upgrades, HyperOS 2
Chipset
Redmi K50 Ultra
Qualcomm SM8475 Snapdragon 8+ Gen 1 (4 nm)
Redmi Note 15 Special
Qualcomm SM6475-AB Snapdragon 6 Gen 3 (4 nm)
CPU
Redmi K50 Ultra
Octa-core (1x3.19 GHz Cortex-X2 & 3x2.75 GHz Cortex-A710 & 4x1.80 GHz Cortex-A510)
Redmi Note 15 Special
Octa-core (4x2.4 GHz Cortex-A78 & 4x1.8 GHz Cortex-A55)
GPU
Redmi K50 Ultra
Adreno 730
Redmi Note 15 Special
Adreno 710
Card slot
Redmi K50 Ultra
No
Redmi Note 15 Special
microSDXC (uses shared SIM slot)
Internal
Redmi K50 Ultra
128GB 8GB RAM, 256GB 8GB RAM, 256GB 12GB RAM, 512GB 12GB RAM
Redmi Note 15 Special
128GB 6GB RAM, 128GB 8GB RAM, 256GB 8GB RAM
Other
Redmi K50 Ultra
UFS 3.1
Redmi Note 15 Special
UFS 2.2
Triple
Redmi K50 Ultra
108 MP, f/1.6, (wide), 1/1.67", PDAF, OIS 8 MP, f/2.2, 120˚, (ultrawide) 2 MP (macro)
Redmi Note 15 Special
-
Features
Redmi K50 Ultra
Color spectrum sensor, LED flash, HDR, panorama
Redmi Note 15 Special
LED flash, HDR, panorama
Video
Redmi K50 Ultra
4K@30/60fps, 1080p@30/60/120/240/960fps
Redmi Note 15 Special
4K@30fps, 1080p@30fps, gyro-EIS
Dual
Redmi K50 Ultra
-
Redmi Note 15 Special
50 MP, f/1.8, (wide), 1/2.88", 0.61µm, PDAF Auxiliary lens
Single
Redmi K50 Ultra
20 MP, (wide)
Redmi Note 15 Special
20 MP, f/2.2, (wide), 1/4"
Features
Redmi K50 Ultra
HDR
Redmi Note 15 Special
-
Video
Redmi K50 Ultra
1080p@30/60fps, 720p@120fps
Redmi Note 15 Special
1080p@30fps
Loudspeaker
Redmi K50 Ultra
Yes, with stereo speakers
Redmi Note 15 Special
Yes, with stereo speakers (with Dolby Atmos)
3.5mm jack
Redmi K50 Ultra
No
Redmi Note 15 Special
No
Other
Redmi K50 Ultra
24-bit/192kHz Hi-Res audio Snapdragon Sound
Redmi Note 15 Special
24-bit/192kHz Hi-Res audio
WLAN
Redmi K50 Ultra
Wi-Fi 802.11 a/b/g/n/ac/6e, dual-band, Wi-Fi Direct
Redmi Note 15 Special
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Bluetooth
Redmi K50 Ultra
5.2, A2DP, LE, aptX HD, aptX Adaptive
Redmi Note 15 Special
5.1, A2DP, LE
Positioning
Redmi K50 Ultra
GPS (L1+L5), GLONASS (L1), BDS (B1I+B1c+B2a), GALILEO (E1+E5a), QZSS (L1+L5), NavIC (L5)
Redmi Note 15 Special
GPS, GALILEO, GLONASS, QZSS, BDS
NFC
Redmi K50 Ultra
Yes
Redmi Note 15 Special
No
Infrared port
Redmi K50 Ultra
Yes
Redmi Note 15 Special
Yes
Radio
Redmi K50 Ultra
No
Redmi Note 15 Special
No
USB
Redmi K50 Ultra
USB Type-C 2.0, OTG
Redmi Note 15 Special
USB Type-C 2.0, OTG
Sensors
Redmi K50 Ultra
Fingerprint (under display, optical), accelerometer, gyro, proximity, compass
Redmi Note 15 Special
Fingerprint (under display, optical), accelerometer, gyro, compass
Other
Redmi K50 Ultra
-
Redmi Note 15 Special
Virtual proximity sensing
Type
Redmi K50 Ultra
Li-Po 5000 mAh
Redmi Note 15 Special
Li-Ion 5800 mAh
Charging
Redmi K50 Ultra
120W wired, PD3.0, 100% in 19 min
Redmi Note 15 Special
45W wired 18W reverse wired
Colors
Redmi K50 Ultra
Black, Gray, Blue, Mercedes AMG
Redmi Note 15 Special
Crimson Reserve red, Carbon Black, Frosted White
Models
Redmi K50 Ultra
22081212C
Redmi Note 15 Special
-
Price
Redmi K50 Ultra
About 430 EUR
Redmi Note 15 Special
About 190 EUR