Benefits:
- Water resistant to IP67
- Very compact and pocket friendly - well, the rounded edges
- High-definition and high-quality display (much better than comparable devices with qHD resolution)
- 1.5 GB of RAM are enough for liquid and judder work out completely, if not tens of games and Apps are draufgepackt. The CPU is also quite adequate. So far I have not experienced any performance weaknesses
- The GPS is working properly and quickly - I use it for tracking while jogging and had no significant deviations or lost connection
- Good main camera, makes neat and sharp images. The front camera is also perfectly fine for Selfies.
- Additional memory card slot for Micro SD card, because there is no space problems
- Lollipop 5.0 is for a few days now officially announced for the S5 Mini Duos
- Battery is replaceable
Disadvantages
- In direct sunlight, it could be even brighter, as IPS are superior to AMOLED displays
- RSAP (direct Konnektierung to the handsfree in the car with the export SIM) does not work, even that can not be acquired from a third party with the rSAP app
- Weak Headset -> that is probably, unfortunately, almost always
- Numerous Samsung eigenene apps that nervous and not so easy deactivated / can be deleted
In the price range a great device with only minor weaknesses. Especially with 4.5-4.7 he displays, there are few alternatives at a comparable level.