Xiaomi Mi 8 vs Xiaomi Redmi 7

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Main
Model
Price
Advantages

launch
Announced
Status
platform
OS
Chipset
CPU
GPU
camera
Rear
Front
Video
Features
display
Size
Resolution
Technology
Protection
Multitouch
battery
General
Charging
body
Dimensions
Weight
Build
SIM card
Miscellaneous
Colors
memory
Internal Storage & RAM
Card slot
comms
WLAN
Bluetooth
GPS
NFC
Radio
USB
Infrared port
features
Sensors
Messaging
Browser
sound
3.5mm jack
network
Technology
2G bands
3G bands
4G bands
Speed
GPRS
EDGE
Videos

Main
Model
Xiaomi Mi 8
Price
$194.19
Advantages
DISPLAY Resolution: 1080 x 2248 pixels (~402 ppi density)
BODY Dimensions: 154.9 x 74.8 x 7.6 mm (6.10 x 2.94 x 0.30 in)
MEMORY Internal Storage & RAM: 64/128/256 GB, 6 GB RAM
COMMS Bluetooth: 5.0, A2DP, LE, aptX HD
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Main
Model
Xiaomi Redmi 7
Price
Advantages
DISPLAY Size: 6.26 inches, 97.8 cm2
BATTERY General: Non-removable Li-Po 4000 mAh battery
MEMORY Card slot: microSD, up to 512 GB (dedicated slot)
MEMORY Card slot: microSD, up to 512 GB (dedicated slot)
COMMS Radio: FM radio
SOUND 3.5mm jack : Yes
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launch
Announced
2018, May
Status
Available. Released 2018, June
platform
OS
Android 8.1 (Oreo)
Chipset
Qualcomm SDM845 Snapdragon 845
CPU
Octa-core (4x2.8 GHz Kryo 385 Gold & 4x1.8 GHz Kryo 385 Silver)
GPU
Adreno 630
camera
Rear
Dual: 12 MP (f/1.8, 1/2.55", 1.4µm, 4-axis OIS, dual-pixel PDAF) + 12 MP (f/2.4, 1/3.4", 1.0µm), 2x optical zoom, dual pixel phase detection autofocus, dual-LED flash, check quality
Front
20 MP (f/2.0, 0.9µm), 1080p
Video
2160p@60fps, 1080p@30/240fps, check quality
Features
Geo-tagging, touch focus, face detection, HDR, panorama
display
Size
6.21 inches, 97.1 cm2
Resolution
1080 x 2248 pixels (~402 ppi density)
Technology
Super AMOLED capacitive touchscreen, 16M colors
Protection
Corning Gorilla Glass 5 - HDR10 display - DCI-P3 - MIUI 9.5
Multitouch
Yes
battery
General
Non-removable Li-Po 3400 mAh battery
Charging
—
body
Dimensions
154.9 x 74.8 x 7.6 mm (6.10 x 2.94 x 0.30 in)
Weight
175 g (6.17 oz, 0.39 lb)
Build
Front/rear glass, aluminum frame (7000 series)
SIM card
Dual SIM
Miscellaneous
Colors
Black, Blue, White, Gold
memory
Internal Storage & RAM
64/128/256 GB, 6 GB RAM
Card slot
No
comms
WLAN
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, DLNA, hotspot
Bluetooth
5.0, A2DP, LE, aptX HD
GPS
Yes, with dual-band A-GPS, GLONASS, BDS, GALILEO, QZSS
NFC
Yes
Radio
No
USB
Type-C 1.0 reversible connector
Infrared port
—
features
Sensors
Infrared face recognition, fingerprint (rear-mounted), accelerometer, gyro, proximity, barometer, compass
Messaging
SMS(threaded view), MMS, Email, Push Email, IM
Browser
HTML5 - Fast battery charging (Quick Charge 4.0+) - MP4/DivX/XviD/WMV/H.265 player - MP3/WAV/eAAC+/FLAC player - Photo/video editor - Document viewer
sound
3.5mm jack
No
network
Technology
GSM / CDMA / HSPA / LTE
2G bands
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 CDMA 800 & TD-SCDMA
3G bands
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands
LTE band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 17(700), 20(800), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500)
Speed
HSPA 42.2/5.76 Mbps, LTE-A (4CA) Cat16 1024/150 Mbps
GPRS
Yes
EDGE
Yes
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launch
Announced
2019, March
Status
Available. Released 2019, March
platform
OS
Android 9.0 (Pie); MIUI 9
Chipset
Qualcomm SDM632 Snapdragon 632 (14 nm)
CPU
Octa-core (4x1.8 GHz Kryo 250 Gold & 4x1.8 GHz Kryo 250 Silver)
GPU
Adreno 506
camera
Rear
—
Front
No
Video
—
Features
—
display
Size
6.26 inches, 97.8 cm2
Resolution
720 x 1520 pixels, 19:9 ratio (~269 ppi density)
Technology
IPS LCD capacitive touchscreen, 16M colors
Protection
Corning Gorilla Glass 5
Multitouch
—
battery
General
Non-removable Li-Po 4000 mAh battery
Charging
Fast battery charging 10W
body
Dimensions
158.7 x 75.6 x 8.5 mm (6.25 x 2.98 x 0.33 in)
Weight
180 g (6.35 oz, 0.4 lb)
Build
—
SIM card
Dual SIM
Miscellaneous
Colors
Black, red, blue
memory
Internal Storage & RAM
64 GB, 4 GB RAM or 32 GB, 3 GB RAM or 16 GB, 2 GB RAM
Card slot
microSD, up to 512 GB (dedicated slot)
comms
WLAN
Wi-Fi 802.11 b/g/n, WiFi Direct, hotspot
Bluetooth
4.2, A2DP, LE
GPS
Yes, with A-GPS, GLONASS, BDS
NFC
—
Radio
FM radio
USB
microUSB 2.0, USB On-The-Go
Infrared port
Yes
features
Sensors
Fingerprint (rear-mounted), accelerometer, proximity, compass
Messaging
—
Browser
—
sound
3.5mm jack
Yes
network
Technology
GSM / CDMA / HSPA / LTE
2G bands
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 CDMA 800 & TD-SCDMA
3G bands
HSDPA 850 / 900 / 1900 / 2100
4G bands
LTE band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500)
Speed
HSPA, LTE
GPRS
Yes
EDGE
Yes
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Summary

The Mi 8 has 4K UHD (1080 x 2248 pixels) display resolution with 401 ppi pixel density which is better in compare to the Xiaomi Redmi 7 2K HD (720 x 1520 pixels) display resolution with 268 ppi pixel density. It makes this phone a right choice for reading books. The Mi 8 smartphone is easier to carry as it has more portable dimensions in comparison to the Xiaomi Redmi 7: 154.9 x 74.8 x 7.6 mm versus 158.7 x 75.6 x 8.5 mm. The Mi 8 model weight 175g which is 5g less in compare with the weight of the Xiaomi Redmi 7.

The Redmi 7 model is produced with a card slot. This is a nice bonus: the user can easily extend internal storage and transfer files. The Redmi 7 is produced with a 3.5mm jack which is the most popular way to connect headset for listening music. The Xiaomi Redmi 7 has a better battery life as it is produced with 4000mah battery which is 600mah bigger compared to the Mi 8 cell. That's mean this phone will live for a longer time without charging.