Screen size
Redmi Note 12 Discovery6.7"
Redmi Note 15 SpecialWinner: 6.8"+1.5%
Quick verdict
Redmi Note 12 Discovery leads the measured specs 10-9.
Measured wins
Redmi Note 12 Discovery
10
spec wins
Overall winner
Ties
4
equal specs
Redmi Note 15 Special
9
spec wins
Screen size
Technology
Redmi Note 12 Discovery
GSM / CDMA / HSPA / EVDO / LTE / 5G
Redmi Note 15 Special
GSM / HSPA / LTE / 5G
2G bands
Redmi Note 12 Discovery
GSM 850 / 900 / 1800 / 1900 , CDMA 800
Redmi Note 15 Special
GSM 850 / 900 / 1800 / 1900
3G bands
Redmi Note 12 Discovery
HSDPA 850 / 900 / 1900 / 2100 , CDMA2000 1xEV-DO
Redmi Note 15 Special
HSDPA 850 / 900 / 2100
4G bands
Redmi Note 12 Discovery
Resolution
Refresh rate
equal specsPeak brightness
Pixel density
CPU speed
RAM
Storage
Main camera
Front camera
Battery
Wired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
USB
equal specs5G support
equal specsNFC
3.5mm jack
SD card
Stereo speakers
equal specs1, 3, 5, 8, 19, 34, 38, 39, 40, 41
Redmi Note 15 Special
1, 3, 5, 8, 28, 40, 41
5G bands
Redmi Note 12 Discovery
1, 3, 5, 8, 28, 38, 41, 77, 78 SA/NSA
Redmi Note 15 Special
1, 3, 5, 8, 28, 40, 78 SA/NSA
Speed
Redmi Note 12 Discovery
HSPA, LTE, 5G
Redmi Note 15 Special
HSPA, LTE, 5G
Announced
Redmi Note 12 Discovery
2022, October 27
Redmi Note 15 Special
2026, April 02
Status
Redmi Note 12 Discovery
Available. Released 2022, November 01
Redmi Note 15 Special
Released Apr 7, 2026
Dimensions
Redmi Note 12 Discovery
162.9 x 76 x 9 mm (6.41 x 2.99 x 0.35 in)
Redmi Note 15 Special
164.0 x 75.4 x 7.4 mm or 7.8 mm
Weight
Redmi Note 12 Discovery
207.5 g (7.34 oz)
Redmi Note 15 Special
178 g or 182 g (6.28 oz)
Build
Redmi Note 12 Discovery
Glass front, glass back, aluminum frame
Redmi Note 15 Special
-
SIM
Redmi Note 12 Discovery
Nano-SIM + Nano-SIM
Redmi Note 15 Special
Nano-SIM + Nano-SIM
Other
Redmi Note 12 Discovery
IP53 dust protected and water resistant (vertical water sprays)
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 Note 12 Discovery
OLED, 1B colors, 120Hz, Dolby Vision, HDR10+, 500 nits (typ), 900 nits (HBM)
Redmi Note 15 Special
AMOLED, 68B colors, 120Hz, 3840Hz PWM, 800 nits (typ), 3200 nits (peak)
Size
Redmi Note 12 Discovery
6.67 inches, 107.4 cm2 (~86.8% screen-to-body ratio)
Redmi Note 15 Special
6.77 inches, 110.9 cm2 (~89.7% screen-to-body ratio)
Resolution
Redmi Note 12 Discovery
1080 x 2400 pixels, 20:9 ratio (~395 ppi density)
Redmi Note 15 Special
1080 x 2392 pixels (~388 ppi density)
OS
Redmi Note 12 Discovery
Android 12, MIUI 13
Redmi Note 15 Special
Android 15, up to 4 major Android upgrades, HyperOS 2
Chipset
Redmi Note 12 Discovery
Mediatek Dimensity 1080 (6 nm)
Redmi Note 15 Special
Qualcomm SM6475-AB Snapdragon 6 Gen 3 (4 nm)
CPU
Redmi Note 12 Discovery
Octa-core (2x2.6 GHz Cortex-A78 & 6x2.0 GHz Cortex-A55)
Redmi Note 15 Special
Octa-core (4x2.4 GHz Cortex-A78 & 4x1.8 GHz Cortex-A55)
GPU
Redmi Note 12 Discovery
Mali-G68 MC4
Redmi Note 15 Special
Adreno 710
Card slot
Redmi Note 12 Discovery
No
Redmi Note 15 Special
microSDXC (uses shared SIM slot)
Internal
Redmi Note 12 Discovery
256GB 8GB RAM
Redmi Note 15 Special
128GB 6GB RAM, 128GB 8GB RAM, 256GB 8GB RAM
Other
Redmi Note 12 Discovery
UFS 2.2
Redmi Note 15 Special
UFS 2.2
Triple
Redmi Note 12 Discovery
200 MP, f/1.7, 24mm (wide), 1/1.4", 0.56µm, PDAF, OIS 8 MP, f/1.9, 119˚ (ultrawide), 1/4.0", 1.12µm 2 MP (macro)
Redmi Note 15 Special
-
Features
Redmi Note 12 Discovery
Dual-LED dual-tone flash, HDR, panorama
Redmi Note 15 Special
LED flash, HDR, panorama
Video
Redmi Note 12 Discovery
4K@30fps, 1080p@30/60/120fps, 720p@960fps
Redmi Note 15 Special
4K@30fps, 1080p@30fps, gyro-EIS
Dual
Redmi Note 12 Discovery
-
Redmi Note 15 Special
50 MP, f/1.8, (wide), 1/2.88", 0.61µm, PDAF Auxiliary lens
Single
Redmi Note 12 Discovery
16 MP, (wide), 1/3.06", 1.0µm
Redmi Note 15 Special
20 MP, f/2.2, (wide), 1/4"
Features
Redmi Note 12 Discovery
HDR
Redmi Note 15 Special
-
Video
Redmi Note 12 Discovery
1080p@30/60fps
Redmi Note 15 Special
1080p@30fps
Loudspeaker
Redmi Note 12 Discovery
Yes, with stereo speakers
Redmi Note 15 Special
Yes, with stereo speakers (with Dolby Atmos)
3.5mm jack
Redmi Note 12 Discovery
Yes
Redmi Note 15 Special
No
Other
Redmi Note 12 Discovery
24-bit/192kHz Hi-Res audio
Redmi Note 15 Special
24-bit/192kHz Hi-Res audio
WLAN
Redmi Note 12 Discovery
Wi-Fi 802.11 a/b/g/n/ac/6, 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 Note 12 Discovery
5.2, A2DP, LE
Redmi Note 15 Special
5.1, A2DP, LE
Positioning
Redmi Note 12 Discovery
GPS (L1), GLONASS (G1), BDS (B1I+B1c), GALILEO (E1), QZSS (L1)
Redmi Note 15 Special
GPS, GALILEO, GLONASS, QZSS, BDS
NFC
Redmi Note 12 Discovery
Yes
Redmi Note 15 Special
No
Infrared port
Redmi Note 12 Discovery
Yes
Redmi Note 15 Special
Yes
Radio
Redmi Note 12 Discovery
Unspecified
Redmi Note 15 Special
No
USB
Redmi Note 12 Discovery
USB Type-C 2.0, OTG
Redmi Note 15 Special
USB Type-C 2.0, OTG
Sensors
Redmi Note 12 Discovery
Fingerprint (side-mounted), accelerometer, gyro, proximity, compass
Redmi Note 15 Special
Fingerprint (under display, optical), accelerometer, gyro, compass
Other
Redmi Note 12 Discovery
-
Redmi Note 15 Special
Virtual proximity sensing
Type
Redmi Note 12 Discovery
Li-Po 4300 mAh
Redmi Note 15 Special
Li-Ion 5800 mAh
Charging
Redmi Note 12 Discovery
210W wired, PD3.0, 66% in 5 min, 100% in 9 min
Redmi Note 15 Special
45W wired 18W reverse wired
Colors
Redmi Note 12 Discovery
Black
Redmi Note 15 Special
Crimson Reserve red, Carbon Black, Frosted White
Models
Redmi Note 12 Discovery
22101316UP
Redmi Note 15 Special
-
Price
Redmi Note 12 Discovery
About 380 EUR
Redmi Note 15 Special
About 190 EUR