UMI Hammer blends an aviation-grade aluminium alloy frame and a tough polycarbonate shell with a 5inch dual-glass IPS and Gorilla Glass HD display to create a virtually unbreakable device that still manages to be both good looking and lightweight.
UMI Hammer comes with 1.5GHz MediaTek quad-core processor, 2GB of RAM and ARM Mali-T760 GPU powered the UMI Hammer to some decent mid-range results, with an AnTuTu score of 32,506.
Add to that its 4G connectivity, a 13Mp rear camera with dual-LED flash, built-in dual-SIM and microSD support, and a removable battery, and the UMI Hammer is quite a deal.
What's really interesting about the Hammer, though, is its software. Out of the box the UMI runs Android 4.4 KitKat, and has a slew of both useful and customisable smart gestures. With support for Rootjoy, though, things get a lot more interesting. Rootjoy is a program that you download to your Windows PC or laptop, then plug in your phone to quickly install updates, flash a new ROM of your choice, install a custom UI or back up your data. Also see: How to back up Android. UMI Zero
With the UMI Hammer you get all the connectivity options you expect, including OTG support, 802.11n Wi-Fi and Bluetooth 4.0. With a separate GPS receiver installed efficiency is said to be improved by 35 percent, getting around the signal problems often experienced by metal-chassis phones.