Screen size
Mi 11 UltraWinner: 6.8"+0.6%
Redmi Note 15 Special6.8"
Quick verdict
Mi 11 Ultra leads the measured specs 11-5.
Measured wins
Mi 11 Ultra
11
spec wins
Overall winner
Ties
7
equal specs
Redmi Note 15 Special
5
spec wins
Screen size
Technology
Mi 11 Ultra
GSM / CDMA / HSPA / EVDO / LTE / 5G
Redmi Note 15 Special
GSM / HSPA / LTE / 5G
2G bands
Mi 11 Ultra
GSM 850 / 900 / 1800 / 1900 , CDMA 800
Redmi Note 15 Special
GSM 850 / 900 / 1800 / 1900
3G bands
Mi 11 Ultra
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 , CDMA2000 1xEV-DO
Redmi Note 15 Special
HSDPA 850 / 900 / 2100
4G bands
Mi 11 Ultra
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
USB
equal specs5G support
equal specsNFC
3.5mm jack
equal specsSD card
Stereo speakers
equal specs1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 28, 32, 38, 40, 41, 42, 66 - International, 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 34, 38, 39, 40, 41, 42 - China
Redmi Note 15 Special
1, 3, 5, 8, 28, 40, 41
5G bands
Mi 11 Ultra
1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 77, 78, 79 SA/NSA - International, 1, 3, 28, 41, 77, 78, 79 SA/NSA - China
Redmi Note 15 Special
1, 3, 5, 8, 28, 40, 78 SA/NSA
Speed
Mi 11 Ultra
HSPA, LTE, 5G
Redmi Note 15 Special
HSPA, LTE, 5G
Announced
Mi 11 Ultra
2021, March 29
Redmi Note 15 Special
2026, April 02
Status
Mi 11 Ultra
Available. Released 2021, April 02
Redmi Note 15 Special
Released Apr 7, 2026
Dimensions
Mi 11 Ultra
164.3 x 74.6 x 8.4 mm (6.47 x 2.94 x 0.33 in)
Redmi Note 15 Special
164.0 x 75.4 x 7.4 mm or 7.8 mm
Weight
Mi 11 Ultra
234 g (8.25 oz)
Redmi Note 15 Special
178 g or 182 g (6.28 oz)
Build
Mi 11 Ultra
Glass front (Gorilla Glass Victus), ceramic back, aluminum frame
Redmi Note 15 Special
-
SIM
Mi 11 Ultra
Nano-SIM + Nano-SIM
Redmi Note 15 Special
Nano-SIM + Nano-SIM
Other
Mi 11 Ultra
IP68 dust tight and water resistant (immersible up to 1.5m for 30 min)
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
Mi 11 Ultra
AMOLED, 1B colors, 120Hz, HDR10+, Dolby Vision, 900 nits (HBM), 1700 nits (peak)
Redmi Note 15 Special
AMOLED, 68B colors, 120Hz, 3840Hz PWM, 800 nits (typ), 3200 nits (peak)
Size
Mi 11 Ultra
6.81 inches, 112.0 cm2 (~91.4% screen-to-body ratio)
Redmi Note 15 Special
6.77 inches, 110.9 cm2 (~89.7% screen-to-body ratio)
Resolution
Mi 11 Ultra
1440 x 3200 pixels, 20:9 ratio (~515 ppi density)
Redmi Note 15 Special
1080 x 2392 pixels (~388 ppi density)
Protection
Mi 11 Ultra
Corning Gorilla Glass Victus
Redmi Note 15 Special
-
OS
Mi 11 Ultra
Android 11, upgradable to Android 13, MIUI 14
Redmi Note 15 Special
Android 15, up to 4 major Android upgrades, HyperOS 2
Chipset
Mi 11 Ultra
Qualcomm SM8350 Snapdragon 888 5G (5 nm)
Redmi Note 15 Special
Qualcomm SM6475-AB Snapdragon 6 Gen 3 (4 nm)
CPU
Mi 11 Ultra
Octa-core (1x2.84 GHz Cortex-X1 & 3x2.42 GHz Cortex-A78 & 4x1.80 GHz Cortex-A55)
Redmi Note 15 Special
Octa-core (4x2.4 GHz Cortex-A78 & 4x1.8 GHz Cortex-A55)
GPU
Mi 11 Ultra
Adreno 660
Redmi Note 15 Special
Adreno 710
Card slot
Mi 11 Ultra
No
Redmi Note 15 Special
microSDXC (uses shared SIM slot)
Internal
Mi 11 Ultra
256GB 8GB RAM, 256GB 12GB RAM, 512GB 12GB RAM
Redmi Note 15 Special
128GB 6GB RAM, 128GB 8GB RAM, 256GB 8GB RAM
Other
Mi 11 Ultra
UFS 3.1
Redmi Note 15 Special
UFS 2.2
Triple
Mi 11 Ultra
50 MP, f/2.0, 24mm (wide), 1/1.12", 1.4µm, dual pixel PDAF, OIS 48 MP, f/4.1, 120mm (periscope telephoto), 1/2.0", 0.8µm, PDAF, OIS, 5x optical zoom 48 MP, f/2.2, 12mm, 128˚ (ultrawide), 1/2.0", 0.8µm, PDAF
Redmi Note 15 Special
-
Features
Mi 11 Ultra
Laser AF, color spectrum sensor, Dual-LED flash, HDR, panorama, 1.1” AMOLED selfie display
Redmi Note 15 Special
LED flash, HDR, panorama
Video
Mi 11 Ultra
8K@24fps, 4K@30/60fps, 1080p@30/60/120/240/960/1920fps, gyro-EIS, HDR10+ rec.
Redmi Note 15 Special
4K@30fps, 1080p@30fps, gyro-EIS
Dual
Mi 11 Ultra
-
Redmi Note 15 Special
50 MP, f/1.8, (wide), 1/2.88", 0.61µm, PDAF Auxiliary lens
Single
Mi 11 Ultra
20 MP, f/2.2, 27mm (wide), 1/3.4", 0.8µm
Redmi Note 15 Special
20 MP, f/2.2, (wide), 1/4"
Features
Mi 11 Ultra
HDR, panorama
Redmi Note 15 Special
-
Video
Mi 11 Ultra
1080p@30/60fps, 720p@120fps, gyro-EIS
Redmi Note 15 Special
1080p@30fps
Loudspeaker
Mi 11 Ultra
Yes, with stereo speakers
Redmi Note 15 Special
Yes, with stereo speakers (with Dolby Atmos)
3.5mm jack
Mi 11 Ultra
No
Redmi Note 15 Special
No
Other
Mi 11 Ultra
24-bit/192kHz Hi-Res audio Tuned by Harman Kardon Snapdragon Sound
Redmi Note 15 Special
24-bit/192kHz Hi-Res audio
WLAN
Mi 11 Ultra
Wi-Fi 802.11 a/b/g/n/ac/6e, dual-band, Wi-Fi Direct, DLNA
Redmi Note 15 Special
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Bluetooth
Mi 11 Ultra
5.2, A2DP, LE, aptX HD, aptX Adaptive
Redmi Note 15 Special
5.1, A2DP, LE
Positioning
Mi 11 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
Mi 11 Ultra
Yes
Redmi Note 15 Special
No
Infrared port
Mi 11 Ultra
Yes
Redmi Note 15 Special
Yes
Radio
Mi 11 Ultra
No
Redmi Note 15 Special
No
USB
Mi 11 Ultra
USB Type-C 2.0, OTG
Redmi Note 15 Special
USB Type-C 2.0, OTG
Sensors
Mi 11 Ultra
Fingerprint (under display, optical), accelerometer, gyro, compass
Redmi Note 15 Special
Fingerprint (under display, optical), accelerometer, gyro, compass
Other
Mi 11 Ultra
Virtual proximity sensing
Redmi Note 15 Special
Virtual proximity sensing
Type
Mi 11 Ultra
Li-Po 5000 mAh
Redmi Note 15 Special
Li-Ion 5800 mAh
Charging
Mi 11 Ultra
67W wired, PD3.0, QC4, 100% in 36 min 67W wireless, 100% in 39 min 10W reverse wireless
Redmi Note 15 Special
45W wired 18W reverse wired
Colors
Mi 11 Ultra
Ceramic White (Cosmic White), Ceramic Black (Cosmic Black)
Redmi Note 15 Special
Crimson Reserve red, Carbon Black, Frosted White
Models
Mi 11 Ultra
M2102K1G, M2102K1C
Redmi Note 15 Special
-
SAR
Mi 11 Ultra
1.08 W/kg (head) 0.81 W/kg (body)
Redmi Note 15 Special
-
SAR EU
Mi 11 Ultra
0.55 W/kg (head) 0.99 W/kg (body)
Redmi Note 15 Special
-
Price
Mi 11 Ultra
About 1500 EUR
Redmi Note 15 Special
About 190 EUR