Screen size
Redmi K40S6.7"
Redmi R70mWinner: 6.9"+3.3%
Quick verdict
Redmi K40S leads the measured specs 12-5.
Measured wins
Redmi K40S
12
spec wins
Overall winner
Ties
5
equal specs
Redmi R70m
5
spec wins
Screen size
Technology
Redmi K40S
GSM / CDMA / HSPA / CDMA2000 / LTE / 5G
Redmi R70m
GSM / HSPA / LTE / 5G
2G bands
Redmi K40S
GSM 850 / 900 / 1800 / 1900 , CDMA 800
Redmi R70m
GSM 850 / 900 / 1800 / 1900
3G bands
Redmi K40S
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 , CDMA2000 1x
Redmi R70m
HSDPA 850 / 900 / 2100
4G bands
Redmi K40S
1, 2, 3, 4, 5, 8, 18, 19, 26, 34, 38, 39, 40, 41, 42
Resolution
Refresh rate
equal specsPeak brightness
Pixel density
CPU speed
RAM
equal specsStorage
equal specsMain 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
Redmi R70m
1, 3, 5, 8, 19, 28, 34, 38, 39, 40, 41, 42, 48
5G bands
Redmi K40S
1, 3, 5, 8, 28, 38, 40, 41, 77, 78 SA/NSA
Redmi R70m
1, 3, 5, 8, 28, 38, 40, 41, 48, 77, 78 SA/NSA
Speed
Redmi K40S
HSPA, LTE, 5G
Redmi R70m
HSPA, LTE, 5G
Announced
Redmi K40S
2022, March 17
Redmi R70m
2026, April 15
Status
Redmi K40S
Available. Released 2022, March 17
Redmi R70m
Available. Released 2026, April 15
Dimensions
Redmi K40S
163.2 x 76 x 7.7 mm (6.43 x 2.99 x 0.30 in)
Redmi R70m
171.6 x 79.5 x 8.2 mm (6.76 x 3.13 x 0.32 in)
Weight
Redmi K40S
195 g (6.88 oz)
Redmi R70m
210 g (7.41 oz)
Build
Redmi K40S
Glass front (Gorilla Glass 5), plastic back
Redmi R70m
-
SIM
Redmi K40S
Nano-SIM + Nano-SIM
Redmi R70m
Nano-SIM + Nano-SIM
Other
Redmi K40S
Splash resistant
Redmi R70m
-
Type
Redmi K40S
AMOLED, 120Hz, HDR10+, 1300 nits (peak)
Redmi R70m
IPS LCD, 120Hz, 800 nits (peak)
Size
Redmi K40S
6.67 inches, 107.4 cm2 (~86.6% screen-to-body ratio)
Redmi R70m
6.9 inches, 114.9 cm2 (~84.3% screen-to-body ratio)
Resolution
Redmi K40S
1080 x 2400 pixels, 20:9 ratio (~395 ppi density)
Redmi R70m
720 x 1600 pixels, 20:9 ratio (~254 ppi density)
Protection
Redmi K40S
Corning Gorilla Glass 5
Redmi R70m
-
OS
Redmi K40S
Android 12, MIUI 13
Redmi R70m
Android 16, HyperOS 3
Chipset
Redmi K40S
Qualcomm SM8250-AC Snapdragon 870 5G (7 nm)
Redmi R70m
Unisoc T8300 (6 nm)
CPU
Redmi K40S
Octa-core (1x3.2 GHz Kryo 585 & 3x2.42 GHz Kryo 585 & 4x1.80 GHz Kryo 585)
Redmi R70m
Octa-core (2x2.2 GHz Cortex-A78 & 6x2.0 GHz Cortex-A55)
GPU
Redmi K40S
Adreno 650
Redmi R70m
Mali-G57 MC2
Card slot
Redmi K40S
No
Redmi R70m
microSDXC
Internal
Redmi K40S
128GB 6GB RAM, 128GB 8GB RAM, 256GB 8GB RAM, 256GB 12GB RAM
Redmi R70m
128GB 6GB RAM, 256GB 6GB RAM, 256GB 8GB RAM, 256GB 12GB RAM
Other
Redmi K40S
UFS 3.1
Redmi R70m
UFS 2.2
Triple
Redmi K40S
48 MP, f/1.8, (wide), 1/2.0", 0.8µm, PDAF, OIS 8 MP, 119˚ (ultrawide) 2 MP (macro)
Redmi R70m
-
Features
Redmi K40S
Color spectrum sensor, Dual-LED dual-tone flash, HDR, panorama
Redmi R70m
LED flash, HDR
Video
Redmi K40S
4K@30fps, 1080p@30/60/120fps, 720p@960fps; gyro-EIS
Redmi R70m
1080p@30fps
Single
Redmi K40S
-
Redmi R70m
13 MP
Single
Redmi K40S
20 MP, (wide)
Redmi R70m
8 MP
Video
Redmi K40S
1080p@30/120fps
Redmi R70m
1080p@30fps
Features
Redmi K40S
-
Redmi R70m
HDR
Loudspeaker
Redmi K40S
Yes, with stereo speakers
Redmi R70m
Yes
3.5mm jack
Redmi K40S
No
Redmi R70m
Yes
Other
Redmi K40S
24-bit/192kHz Hi-Res audio
Redmi R70m
-
WLAN
Redmi K40S
Wi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct
Redmi R70m
Wi-Fi 802.11 a/b/g/n/ac, dual-band
Bluetooth
Redmi K40S
5.2, A2DP, LE
Redmi R70m
5.4, A2DP, LE
Positioning
Redmi K40S
GPS (L1+L5), GLONASS (L1), BDS (B1I+B1c+B2a), GALILEO (E1+E5a), QZSS (L1+L5), NavIC (L5)
Redmi R70m
GPS, GLONASS, GALILEO, BDS
NFC
Redmi K40S
Yes
Redmi R70m
No
Radio
Redmi K40S
No
Redmi R70m
No
USB
Redmi K40S
USB Type-C 2.0, OTG
Redmi R70m
USB Type-C 2.0, OTG
Sensors
Redmi K40S
Fingerprint (side-mounted), accelerometer, gyro, proximity, compass
Redmi R70m
Accelerometer, compass
Other
Redmi K40S
-
Redmi R70m
Virtual proximity sensing
Type
Redmi K40S
Li-Po 4500 mAh
Redmi R70m
6300 mAh
Charging
Redmi K40S
67W wired, PD3.0, QC3, 100% in 38 min
Redmi R70m
15W wired, PD 7.5W reverse wired
Colors
Redmi K40S
Black, Gray, Blue, Green
Redmi R70m
Black, Blue, Purple, White
Price
Redmi K40S
About 260 EUR
Redmi R70m
About 220 EUR