For creating the Xiaomi Mi 8 SE Performance Review, we received the phone in a 64 GB ROM / 4 GB RAM version from gearbest.com. The device is bootloader-locked and running official MIUI v10 ROM.

Hardware / Software

Mi 8 SE Performance Review mi-globe_performance_review_mi8se_sirius

Mi 8 SE Performance Review mi-globe_performance_review_mi8se_deviceinfo

Device model Xiaomi Mi 8 SE – Codename: sirius
Firmware MiUI 10.0 | Stable 10.0.1.0(OEBCNFH)
Android version 8.1.0
Chipset Qualcomm SDM710 Snapdragon 710
CPU / GPU Octa-core 2×2.2 GHz 360 Gold & 6×1.7 GHz Kryo 360 Silver ( Adreno 616 )
Memory 4 GB RAM / 64 GB ROM
Display Super AMOLED 5.88 inches (~81.3% screen-to-body ratio)
1080 x 2244 pixels, 18.7:9 ratio (~423 ppi density)
Battery Non-removable Li-Po 3120 mAh battery
Shopping Link GearBest.com

CPU

For testing the CPU performance, we are connecting the device via USB/adb in developer mode and execute special commands on operating-system-level! In this test we are compressing 1 GB of data with gzip, which is used quite a lot in real conditions like browsing the web or extracting archives.

– Single-Core

Using only 1 Core, it took 18.60 Seconds to compress 1GB of data. This is a rate of 56.3 MB/s !

Mi 8 SE Performance Review mi-globe_performance_review_mi8se_gzip_single

Mi 8 SE Performance Review mi-globe_performance_review_mi8se_cpu_single

– Multi-Core

Using all 8 Cores at the same time the device was able to compress the data a lot faster. 8x 125MB (1GB) data has been compressed in only 3.80 Seconds. This is a rate of 275,94 MB/s !

Mi 8 SE Performance Review mi-globe_performance_review_mi8se_gzip_multi

Mi 8 SE Performance Review mi-globe_performance_review_mi8se_cpu_multi


WiFi

The Qualcomm SDM710 Snapdragon 710 features an Integrated 11ac Wi-Fi via WCN3680B chip with a peak speed of 867 Mbps !
In our Mi 8 SE performance Review, it was capable of connecting to 2.4 GHz and 5 GHz networks.

2.4 GHz Link Speed: 173 Mbit/s
Channel width: 22 Mhz
5 GHz Link Speed: 866 Mbit/s
Channel width: 80 Mhz

Mi 8 SE Performance Review mi-globe_performance_review_mi8se_wifi

– iperf

iPerf is a tool for active measurements of the maximum achievable bandwidth on IP networks and network interfaces.
On a 5GHz wifi connection under real conditions, we could reach a maximum transmissions speed of 384 Mbit/s ! That means that downloading a 1GB file from the internet is done in ~23 Seconds (45.8 MB/s).

Mi 8 SE Performance Review mi-globe_performance_review_mi8se_iperf

GPS

Under a cloudy sky, the Xiaomi Mi 8 SE could lock the location in 4 seconds ! In comparison, it had the most stable signal strength while having the same accuracy!

Mi 8 SE Performance Review mi-globe_performance_review_mi8se_gps

Storage / SD-Card

Phones and other systems perform thousands of read and write actions every day. The performance of the internal storage is therefore a very important indicator for a phones general behaviour and a smooth control of the device.

We did not use any caching mechanisms for this test!

– Write-Speed

In our Mi 8 SE performance Review, we could reach write-speeds up to 201.7 MB/s. 1GB of data is written in 5.19 Seconds!

Mi 8 SE Performance Review mi-globe_performance_review_mi8se_write

– Read-Speed

Reading the previously created 1GB file has happened in 4.06 Seconds. Thats a rate of 258.1 MB/s!

Mi 8 SE Performance Review mi-globe_performance_review_mi8se_read

Battery

We did a long-time video test to see how long the battery can keep the device running. For this test, we put the phone in airplane mode and set the display to maximum brightness!
On this conditions, we were able to watch a 1080p h264 Video File for 15 hours and 24 minutes until the phone switched off!

Mi 8 SE Performance Review mi-globe_performance_review_mi8se_battery_video

Mi 8 SE Performance Review mi-globe_performance_review_mi8se_battery_graph

Mi 8 SE Performance Review mi-globe_performance_review_mi8se_battery_time


Benchmarks

AnTuTu 167472
Geekbench CPU: 1852 / 5874
Compute: 6767
3D Mark 2658

Mi 8 SE Performance Review mi-globe_performance_review_mi8se_geekbench_compute Mi 8 SE Performance Review mi-globe_performance_review_mi8se_antutu Mi 8 SE Performance Review mi-globe_performance_review_mi8se_3Dmark Mi 8 SE Performance Review mi-globe_performance_review_mi8se_geekbench_cpu

Images

Mi 8 SE Performance Review mi-globe_performance_review_mi8se_image2

Mi 8 SE Performance Review mi-globe_performance_review_mi8se_image1

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