Benchmarking outfit Master Lu has given us quite a number of insights concerning how smartphones stand against each other. We had reported on the ranking of smartphones based on their performance, taking into considerations key parameters like RAM size, chipset type, storage size, processor speed etc. Xiaomi’s Black Shark2 gaming phone stole the show in that ranking. Master LU also published a ranking of smartphone processors with Qualcomm’s flagship Snapdragon 855 emerging as the overall best chipset around. 
Master LU has now released a ranking of smartphones based on their running temperatures with such details as high and low temperatures, as well as daily high and low temperatures. The ranking covers phones that run through the app between January 1 and March 31. The temperature values come from the average temperature recorded by mobile phones that have run through the Master Lu Android APP. The data excludes models with sample quantity below 1000. It is also screened for abnormal data and robots.
The phone with the highest load temperature is OPPO Find X which can reach 38.35 °C on average, followed by Nokia X7 2018, Smartisan Nut Pro 2 Special Edition, Sony Xperia XZ2, Black Shark Helo Game Phone, all of which are flagships or high-end models. The Nokia 6 also reached 35.77 ° C.
Among the top ten phones with “high” running temperatures, there are three Nokia models; Nokia X7 2018, Nokia 7 Plus and Nokia 6, which is the highest from any OEM. However, we must point out that the temperatures are not too high, as they are below 40%.
On the other hand, the top 10 phones with the lowest average running temperatures have the VivoY81s on top with an average temperature of 26.69°C. Other models include the OPPO A5 with a running temperature of 26.95°C, Vivo iQOO 28.07°C, Huawei Enjoy 9 Plus, OPPO R17 etc.
Read Also: Master Lu Q1 2019 Smartphone Processor Ranking – Snapdragon 855 tops the list
There is also a ranking of phones based on their average daily temperatures (24 hours). The Redmi Note 6X Hatsune Miku Limited Edition comes with the highest temperature of 35.21 ℃. OPPO Find X also has a “high” daily temperature of 33.96℃ to rank in the second place. The Nokia 7 Plus with a 31.12°C rank as the third. For the coolest daily running temperature model, the Vivo Y81s retains the number one spot for having the lowest daily (24-hour) running temperature. The temperature is only 23.24°C.
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