Only a handful number of iPhone 4 cases deserve to be titled as “cool” or “best“.
Eton Mobius is just one of them. It is not a standard case but also doubles as a charger, a rechargeable battery which uses the free solar energy.
The case has a form fitting design with exact cutouts for camera and ports. It gives the necessary protection for the frame and glass made back of iPhone 4. On the back of the case, there is a highly efficient solar panel made from mono-crystal material. Overall, the accessory feels very solid and durable.
The solar panel will work under the sun and begin to fill its internal battery. You can use the energy as it charges or conserve to use at a later time by turning off the standby switch. There are two indicators to get maximum benefit. The first one is battery charge indicator which you can track the status of battery. The second shows the solar charge level which is a good indication of solar power level. LED light will instantly turn ON under enough sunlight to inform about charging.
Direct sunlight will provide 25 mins of talk time after 1 hr of charging. So, you will have plenty of energy for free during day time. Surely, you can also continue charging the case battery with traditional ways by USB connection. (Even when iPhone is not inside)
Here is a chart which will help you understand the charge rates and approximate extra battery time for Apple iPhone 4.
The only minor thing we could complain shamelessly is the added bulk. Your iPhone 4 size will double. But, considering the fact that you get the latest solar panel handset tech, we will just ignore our poor complaint.
Recommended and our cool gadget rate is 9 / 10
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p.s : Will you upgrade to iPhone 4s? If so, check here the reviews of iPhone 4s cases. We especially admired the Titanium made special case.
