Good Android phone with 1.1Ghz Quad-Core processor provides good performance and great system execution of the Unihertz Jelly.
An advantage of the Unihertz Jelly is the possibility of using two mobile carriers, a Dual-SIM device with two SIM card slots.
Good connectivity of this device includes Bluetooth 4.0 + A2DP, WiFi 802.11 a/b/g/n (2.4Ghz, 5Ghz), but it lacks NFC connection.