Xiaomi Redmi K40 vs Realme 15 Pro
Product
Price
579 USD
579 USD
Status
Available
Available
Brand
Xiaomi Mobiles
Realme Mobiles
Model No
M2012K11C
RMX5101
Launch Date
2021, March 04
2025, July 30
Wikipedia
Technology
GSM / CDMA / HSPA / CDMA2000 / LTE / 5G
GSM / HSPA / LTE / 5G
2G bands
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2,
CDMA 800
GSM 850 / 900 / 1800 / 1900
3G bands
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100,
CDMA2000 1x
HSDPA 850 / 900 / 2100
4G bands
1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 34, 38, 39, 40, 41, 42
1, 3, 5, 8, 28, 40, 41
5G bands
1, 3, 28, 41, 77, 78 SA/NSA/Sub6
1, 3, 5, 8, 28, 40, 41, 77, 78 SA/NSA
Speed
HSPA 42.2/5.76 Mbps, LTE-A, 5G
HSPA, LTE, 5G
Dimensions
163.7 x 76.4 x 7.8 mm (6.44 x 3.01 x 0.31 in)
162.3 x 76.2 x 7.7 mm (6.39 x 3.00 x 0.30 in)
Weight
196 g (6.91 oz)
187 g (6.60 oz)
Build
IP53, dust and splash protection, Corning Gorilla Glass 5
Glass front (Gorilla Glass 7i), aluminum frame, fiber-reinforced plastic back or silicone polymer (eco leather) back
IP68/IP69 dust tight and water resistant (high pressure water jets; immersible up to 2m for 30 min)
MIL-STD-810H compliant*
* does not guarantee ruggedness or use in extreme conditions
SIM
Dual SIM (Nano-SIM, dual stand-by)
Nano-SIM + Nano-SIM
Colors
Black, White, Aurora
Flowing Silver, Silk Purple, Velvet Green, Game of Thrones Limited Edition
Type
Super AMOLED, 120Hz, HDR10+, 1300 nits (peak)
OLED, 1B colors, 144Hz, 4608Hz PWM, HDR10+, 1800 nits (HBM), 6500 nits (peak)
Size
6.67 inches, 107.4 cm2 (~85.9% screen-to-body ratio)
6.8 inches, 112.8 cm2 (~91.2% screen-to-body ratio)
Resolution
1080 x 2400 pixels, 20:9 ratio (~395 ppi density)
1280 x 2800 pixels, 19.5:9 ratio (~453 ppi density)
RAM
8GB/12GB
8GB/12GB
Storage
128GB/256GB, UFS 3.1
128GB/256GB/512GB
UFS 3.1
Card Slot
No
Lens 1
64 MP, f/1.9, 26mm (wide), 1/1.7", 0.8µm, PDAF
50 MP, f/1.8, 24mm (wide), 1/1.56", 1.0µm, multi-directional PDAF, OIS
Lens 2
8 MP, f/2.2, 119˚ (ultrawide)
50 MP, f/2.0, 16mm, 116˚ (ultrawide), 1/2.88", 0.61µm
Lens 3
5 MP, 50mm (macro), 1/5.0", 1.12µm
Features
Digital Zoom, Auto Flash, Face detection, Touch to focus, Exposure compensation, ISO control
LED flash, HDR, panorama
Video
8K@30fps, 4K@30/60fps, 1080p@30/60/120/240/960fps, gyro-EIS, HDR10+
4K@30/60fps, 1080p@30/60/120fps, gyro-EIS, OIS
Lens 1
20 MP, (wide), 1/3.4", 0.8µm
50 MP, f/2.4, 23mm (wide), 1/2.88", 0.61µm
Video
1080p@30fps, 720p@120fps
4K@30/60fps, 1080p@30/60fps
Features
Panorama
Capacity
Li-Po 4520 mAh, non-removable
Market-dependent versions:
· Li-Ion 7000 mAh - India, China
· Si/C Li-Ion 7000 mAh - ROW
Charging
Fast charging 33W, 100% in 52 min,
Power Delivery 3.0,
Quick Charge 3+
80W wired, 50% in 25 min
Sensors
Fingerprint (side-mounted), accelerometer, gyro, proximity, compass, color spectrum, barometer
Fingerprint (under display, optical), accelerometer, gyro, proximity, compass
Loudspeaker
Yes, with stereo speakers
Yes, with stereo speakers
3.5mm jack
Yes
WLAN
Wi-Fi 802.11 a/b/g/n/ac/6e, dual-band, Wi-Fi Direct, hotspot
Wi-Fi 802.11 a/b/g/n/ac/6, dual-band
Bluetooth
5.2, A2DP, LE
5.4, A2DP, LE
GPS
Yes, with dual-band A-GPS, GLONASS, BDS, GALILEO, QZSS, NavIC
GPS, GLONASS, GALILEO, BDS
NFC
Yes
Yes (market/region dependent)
USB
USB Type-C 2.0, USB On-The-Go
USB Type-C 2.0
OS
Android 15, up to 3 major Android upgrades, Realme UI 6.0
Chipset
Qualcomm SM7750-AB Snapdragon 7 Gen 4 (4 nm)
CPU
Octa-core (1x2.8 GHz Cortex-720 & 4x2.4 GHz Cortex-720 & 3x1.8 GHz Cortex-520)
GPU
Adreno 722