Since I bought this budget phabletphone about a month ago, I paid about 129 USD in AliExpress, include e-EMS shipping fee. My previous experience about doogee X5 Pro was not bad except only 2 touch points makes unstable touching.
Fortunately F5 not defected only except dark shading problem on bottom of screen, it mostely occurs to Chinese smartphones. Outter shell made well, feels durable with little bit sharpness each edges but not harmful.
Fingerprint sensor seems fast to identify my finger, but sometimes it fails continousely by put finger in different degrees, and its security setting application seems not stylish as like modern designed apps – much looks like chinese children made quality, actually it is sucks, but I could accept th
All buttons and SIM tray placed on right side, it may depends on people flavor, but not for me. Little bit difficult to control phone than others.
SIM tray is not polished itself, each edges are too sharp – maybe you can hurted, So I used sandpaper to be abrased for safe and smooth deattach tray.
Stagefright defection
Latest update contains Stagefright CVE-2015-6602 libutils vulnerable problem. I used fix this problem with SP Flash tool with modified TWRP recovery image and stagefright fix so package for MT6753 CPU.
I strongly recommend to patch this defection by yourself. Doogee not patch this defection – Most chinese manufacturer not concern defections. So people may need manage by self.
UI
doogee F5 android OS belongs to AOSP build, not recommend to use default launcher3. I’m using Nova Launcher for fill many app icons to 5.5″ big screen. Default launcher places too less icons on 5.5″ scrren, it seems like use to no purpose space.
Performance
As like other MT6753 CPU based devices, F5 performance is almost like Qualcomm snapdragon 600 32bit series.
Latest version of Antutu Benchmark scored 36867, moderate for use in life even it enough most of games except heavy graphic games. T720 MP3 graphic unit is not much powerful than other. Actually I don’t like to playing heavy graphic games on smartphone.
Internal DDR3 memory and eMMC runs fast, it is really nice than other similar spec smartphones. Specially eMMC performance was excellent in this price.
Hynix eMMC 16GiB, model HAG2e used for internal storage and it not disappoint performance to install app and launch it faster than similar priced smartphones.
I used external storage sdcard to Barum electronics MLC UHS-1 card. It shows performace at 77% at real UHS-1 card readers – almst over 22MB/sec in writing speed at UHS-1 USB 3.0 reader.
Fake sensors
I was disappointed this issue, some built in sensors not work actually – Magnet field, Orientation and Rotation vector. It identified as just installed but not actually senses metered.
It may occurs some problem when you use this phabletphone as car navigation system. Your position and direction turns around randomly and it may annoying yourself.
Battery & Charge
Some sellers are written as 3000mAh battery capacity, but DON’T TRUST IT. doogee F5 is 2660mAh battery capacity in official specification (see here: http://www.doogeemobile.com/doogee-f5.html). Don’t expect long battery life. And it doesn’t support 9V or 12V applied quick charge. It means just accept 5V 2A power while it charged to 75%.
WiFi problem
This device supports 5GHz WiFi signals but not works correctly for long. It automatically turns down for about 5 to 10 minutes after using WiFi, then I can’t search any 5GHz AP names on WiFi setting menu – yes, it turned down in 5GHz. So I need choose 2.4GHz AP again to continue using internet. If you are want to use internet connection in stable situation, don’t use 5GHz WiFi AP. It may cause of randomly disconnect of your internet.
Now I understand why other MT6753 CPU models are blocked 5GHz WiFi support…
Conclusion
This phabletphone is good choice for price. Actually I didn’t resfected all fucntions works well. Just Ok for use it for enjoying multiple works like downloading torrent and watching video in large screen than my iPhone5. Just use it for your secondary device, not for primary.