Product
Xiaomi Redmi K40 Pro
Xiaomi Redmi K40 Pro
Samsung Galaxy A6 (2018)
Samsung Galaxy A6 (2018)
Battery
Charging 33W wired, PD3.0, QC3, 100% in 52 min -
Type Li-Po 4520 mAh Li-Ion 3000 mAh, non-removable
Body
Build - Glass front, aluminum back, aluminum frame
Dimensions 163.7 x 76.4 x 7.8 mm (6.44 x 3.01 x 0.31 in) 149.9 x 70.8 x 7.7 mm (5.90 x 2.79 x 0.30 in)
SIM Nano-SIM + Nano-SIM Nano-SIMNano-SIM + Nano-SIM
Weight 196 g (6.91 oz) 162 g (5.71 oz)
  IP53 dust protected and water resistant (vertical water sprays) -
Comms
Bluetooth 5.2, A2DP, LE, aptX HD, aptX Adaptive 4.2, A2DP, LE
Infrared port Yes -
NFC Yes Yes (market/region dependent)
Positioning GPS (L1+L5), GLONASS (G1), BDS (B1I+B1c+B2a), GALILEO (E1+E5a), QZSS (L1+L5), NavIC (L5) GPS, GLONASS, BDS
Radio No FM radio
USB USB Type-C 2.0, OTG microUSB 2.0
WLAN Wi-Fi 802.11 a/b/g/n/ac/6e, dual-band, Wi-Fi Direct Wi-Fi 802.11 a/b/g/n, Wi-Fi Direct
Display
Protection Corning Gorilla Glass 5 -
Resolution 1080 x 2400 pixels, 20:9 ratio (~395 ppi density) 720 x 1480 pixels, 18.5:9 ratio (~294 ppi density)
Size 6.67 inches, 107.4 cm2 (~85.9% screen-to-body ratio) 5.6 inches, 79.6 cm2 (~75.0% screen-to-body ratio)
Type Super AMOLED, 120Hz, HDR10+, 1300 nits (peak) Super AMOLED
Features
Sensors Fingerprint (side-mounted), accelerometer, gyro, proximity, compass, barometer Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass
  - ANT+ Samsung Pay
Launch
Announced 2021, February 25 2018, May. Released 2018, May
Status Available. Released 2021, March 04 Discontinued
Main Camera
Features Color spectrum sensor, LED flash, HDR, panorama LED flash, panorama, HDR
Single - 16 MP, f/1.7, 26mm (wide), PDAF
Triple 64 MP, f/1.9, 26mm (wide), 1/1.7", 0.8µm, PDAF 8 MP, f/2.2, 119˚ (ultrawide) 5 MP, f/2.4, 50mm (macro), 1/5.0", 1.12µm -
Video 8K@30fps, 4K@30/60fps, 1080p@30/60/120/240/960fps, gyro-EIS, HDR10+ 1080p@30fps
Memory
Card slot No microSDXC (dedicated slot)
Internal 128GB 6GB RAM, 128GB 8GB RAM, 256GB 8GB RAM, 256GB 12GB RAM 32GB 3GB RAM, 32GB 4GB RAM, 64GB 4GB RAM
  UFS 3.1 eMMC 5.1
Misc
Colors Black, White, Aurora Black, Gold, Blue, Lavender
Models M2012K11C SM-A600F, SM-A600FN, SM-A600A, SM-A600G, SM-A600GN, SM-A600P, SM-A600N, SM-A600T1, SM-A600AZ, SM-A600T, SM-A600U
SAR EU - 0.49 W/kg (head)     1.39 W/kg (body)    
Network
2G bands GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900
3G bands HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 HSDPA 850 / 900 / 1900 / 2100 - EMEA
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, 7, 8, 20, 38, 40 - EMEA
5G bands 1, 3, 28, 41, 77, 78 SA/NSA/Sub6 -
Speed HSPA, LTE, 5G HSPA 42.2/5.76 Mbps, LTE (2CA) Cat6 300/50 Mbps
Technology GSM / CDMA / HSPA / CDMA2000 / LTE / 5G GSM / HSPA / LTE
  CDMA2000 1x -
Our Tests
Audio quality - Noise -92.8dB / Crosstalk -91.7dB
Battery (old) - Endurance rating 83h
Camera - Photo / Video
Display - Contrast ratio: Infinite (nominal), 3.397 (sunlight)
Loudspeaker - Voice 76dB / Noise 72dB / Ring 91dB
Performance - AnTuTu: 63632 (v7) GeekBench: 3718 (v4.4) GFXBench: 3.9fps (ES 3.1 onscreen)
Platform
Chipset Qualcomm SM8350 Snapdragon 888 5G (5 nm) Exynos 7870 Octa (14 nm)
CPU Octa-core (1x2.84 GHz Cortex-X1 & 3x2.42 GHz Cortex-A78 & 4x1.80 GHz Cortex-A55) Octa-core 1.6 GHz Cortex-A53
GPU Adreno 660 Mali-T830 MP1
OS Android 11, MIUI 12 Android 8.0 (Oreo), upgradable to Android 10, One UI 2.0
Selfie camera
Features HDR LED flash
Single 20 MP, f/2.5, (wide), 1/3.4", 0.8µm 16 MP, f/1.9, 26mm (wide), 1/3.06", 1.0µm
Video 1080p@30fps, 720p@120fps 1080p@30fps
Sound
3.5mm jack No Yes
Loudspeaker Yes, with stereo speakers Yes
  24-bit/192kHz Hi-Res audio Snapdragon Sound -