Xiaomi 11 WiFi support 160MHz, so the order to buy,I only look at the phone’s wifi parameters, the other do not care too much, and do not understand, this is what I need.
The price of Xiaomi 11 charging kit is the same as that of the Eco Kit, which is really brilliant.
Xiaomi 55W charger and a very sturdy 5A cable.
I heard that the maximum power 55W is a private protocol (11V/5A), and the two USB ammeters in my hand do not recognize it. Which ammeter works well, fnirsi? power-z?
Use the phone to 45%, connect the charger, check the power of the socket, and learn that the power of the charger 50W, counting the AC-DC conversion rate of 90%, about 45W. If the power is reduced to 10% and then charged, there may be higher power.
Charging interface: MI TURBO CHARGE
Xiaomi 11 feels significantly better in the hand compared to Xiaomi 10, and is thinner and lighter.
Next, the most obvious improvement in wifi is the 160MHz bandwidth, 4096-QAM, which is not supported by the router in hand, so this feature cannot be measured.
Xiaomi 10: Qualcomm QCA6391 Wi-Fi 6/BT 5.1 Wireless Combo SoC
Xiaomi 11: Qualcomm WCN:6851 Wi-Fi 6E / BT 5.2
Qualcomm cell phone WIFI chip prefix is generally QCA and WCN, did not see the other code names. For example, the WLAN module chips used in older Xiaomi phone models in the past are as follows.
The WCN6851 chip used in Xiaomi 11 itself can support WiFi 6E, but I don’t know if the circuit and antenna design supports it, and I don’t know if the 6GHz will be supported by firmware update in the future.
When introducing the wireless rate, Xiaomi 11 mentions the value of 3.5Gbps, which is the wireless rate of dual-band concurrency, and if its 2.4G can also support 4096-QAM, the maximum rates under this modulation are respectively
2.4G rate: 688.23Mbps
5G rate: 2882.35Mbps
Add up to 3570.58Mbps
If 2.4G does not support 4096-QAM, the total rate is 3455.7Mbps, which is also 3.5Gbps after rounding up.
In summary 4096-QAM can bring 20% increase in wireless handshake rate.
Here is the 5G rate of Xiaomi 11 connected to Xiaomi AX3600 router : 2401Mbps
Here with Xiaomi 10 to compare the performance of long-distance wifi.
Put the Xiaomi AX3600 wireless router in the “WIFI” position in the figure below, the phone was placed at point C and D for speed measurement, only no 5G.
Router firmware version: 1.0.67, 5G channel 44. router WAN port connected to self-built speedtest speed test server, network card is intel x550-T2. each location point continuous speed test 6 times, and finally take the average value for comparison.
Xiaomi 11 version MIUI 12.0.10
Xiaomi 10 version MIUI 12.0.4
All the results are shown in the table below.
The average values are compared as follows.
When both phones are at 80MHz bandwidth, Xiaomi 11 is not a little bit slower than Xiaomi 10, especially when the C point position. After measuring the 80MHz bandwidth of Xiaomi 11, I already had the urge to return it.
When Xiaomi 11 with 160MHz bandwidth, only barely faster than Xiaomi 10 80MHz bandwidth a little. What is the situation ？？？？ It doesn’t make sense!
The wifi of Xiaomi 11 is much worse than Xiaomi 10.