Product
Xiaomi Redmi K40 Pro+
Xiaomi Redmi K40 Pro+
Samsung Galaxy Note FE
Samsung Galaxy Note FE
Battery
Charging 33W wired, PD3.0, QC3, 100% in 52 min 15W wired, QC2 Wireless (Qi)
Music play - Up to 68 h
Talk time - Up to 23 h (3G)
Type Li-Po 4520 mAh Li-Ion 3200 mAh, non-removable
Body
Build - Glass front (Gorilla Glass 5), glass back (Gorilla Glass 5), aluminum frame
Dimensions 163.7 x 76.4 x 7.8 mm (6.44 x 3.01 x 0.31 in) 153.5 x 73.9 x 7.9 mm (6.04 x 2.91 x 0.31 in)
SIM Nano-SIM + Nano-SIM Nano-SIMNano-SIM + Nano-SIM
Weight 196 g (6.91 oz) 167 g (5.89 oz)
  IP53 dust protected and water resistant (vertical water sprays) IP68 dust tight and water resistant (immersible up to 1.5m for 30 min) Stylus
Comms
Bluetooth 5.2, A2DP, LE 4.2, A2DP, EDR, LE
Infrared port Yes -
NFC Yes Yes
Positioning GPS (L1+L5), GLONASS (G1), BDS (B1I+B1c+B2a), GALILEO (E1+E5a), QZSS (L1+L5), NavIC (L5) GPS, GLONASS, BDS, GALILEO
Radio No No
USB USB Type-C 2.0, OTG USB Type-C 3.1
WLAN Wi-Fi 802.11 a/b/g/n/ac/6e, dual-band, Wi-Fi Direct Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Display
Protection Corning Gorilla Glass 5 Corning Gorilla Glass 5
Resolution 1080 x 2400 pixels, 20:9 ratio (~395 ppi density) 1440 x 2560 pixels, 16:9 ratio (~515 ppi density)
Size 6.67 inches, 107.4 cm2 (~85.9% screen-to-body ratio) 5.7 inches, 89.6 cm2 (~79.0% screen-to-body ratio)
Type Super AMOLED, 120Hz, HDR10+, 1300 nits (peak) Super AMOLED, HDR10
Features
Sensors Fingerprint (side-mounted), accelerometer, gyro, proximity, compass, barometer Iris scanner, fingerprint (front-mounted), accelerometer, gyro, proximity, compass, barometer, heart rate, SpO2
  - ANT+ S-Voice natural language commands and dictation Samsung Pay (Visa, MasterCard certified)
Launch
Announced 2021, February 25 2017, July. Released 2017, July
Status Available. Released 2021, March 04 Discontinued
Main Camera
Features Color spectrum sensor, LED flash, HDR, panorama LED flash, auto-HDR, panorama
Single - 12 MP, f/1.7, 26mm (wide), 1/2.55", 1.4µm, dual pixel PDAF, OIS
Triple 108 MP, f/1.8, 26mm (wide), 1/1.52", 0.7µm, 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+ 4K@30fps, 1080p@30/60fps, 720p@240fps, stereo sound rec., HDR, gyro-EIS
Memory
Card slot No microSDXC (uses shared SIM slot)
Internal 256GB 12GB RAM 64GB 4GB RAM
  UFS 3.1 UFS 2.0
Misc
Colors Black, White, Aurora Black Onyx, Blue Coral, Gold Platinum, Silver Titanium
Models - SM-N935F, SM-N935L, SM-N935S, SM-N935K
SAR - 0.46 W/kg (head)     1.16 W/kg (body)    
Network
2G bands GSM 850 / 900 / 1800 / 1900 GSM 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only)
3G bands HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 34, 38, 39, 40, 41, 42 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 38, 39, 40, 41
5G bands 1, 3, 28, 41, 77, 78 SA/NSA/Sub6 -
Speed HSPA, LTE, 5G HSPA 42.2/5.76 Mbps, LTE (3CA) Cat12 600/150 Mbps
Technology GSM / CDMA / HSPA / CDMA2000 / LTE / 5G GSM / HSPA / LTE
  CDMA2000 1x TD-SCDMA
Platform
Chipset Qualcomm SM8350 Snapdragon 888 5G (5 nm) Exynos 8890 Octa (14 nm)
CPU Octa-core (1x2.84 GHz Cortex-X1 & 3x2.42 GHz Cortex-A78 & 4x1.80 GHz Cortex-A55) Octa-core (4x2.3 GHz Mongoose & 4x1.6 GHz Cortex-A53)
GPU Adreno 660 Mali-T880 MP12
OS Android 11, MIUI 12 Android 7.1.1 (Nougat), upgradable to Android 9.0 (Pie), One UI
Selfie camera
Dual - 5 MP, f/1.7, 22mm (wide) 2 MP (dedicated iris scanner camera)
Features HDR HDR
Single 20 MP, f/2.5, (wide), 1/3.4", 0.8µm -
Video 1080p@30fps, 720p@120fps
Sound
3.5mm jack No Yes
Loudspeaker Yes, with stereo speakers Yes
  24-bit/192kHz Hi-Res audio 24-bit/192kHz audio