Gocomma Roidmi S2 Car Bluetooth Charger

Posted on January 3, 2017

Do you want to listen to your own music in your car without Bluetooth? The Gocomma Roidmi S2 is the solution for that problem. It’s a car USB charger, which can stream music from your Bluetooth phone to the FM radio. We did not know that this technology existed and were very curious if it worked as expected.

Did You Know The Brand, Gocomma?

A few weeks ago we mentioned some new brands promoted by Gearbest, Gocomma was one of them. Their products are at the moment of writing only available at Gearbest. We assume that Gocomma is an initiative from Gearbest itself. They only have three different products. Besides the car charger they offer a tempered glass protective film for your smartphone and a simple two-footed power adapter.

What We Noticed About The Roidmi

We found out that Roidmi is not just the type of the product, but a complete brand. They started in 2015 with a crowdfunding campaign on Indiegogo which was in the end a big success. They started their production and started selling through the name Xiaomi RoadMi S2. Xiaomi supported their product because of their “smart devices” philosophy. The Roadmi (road mi) is used for their smart drivers.

GoComma probably liked the product and are actually doing the same as Xiaomi. Just selling the Roadmi with their name in front. As far as we know, both products are almost identical. The only difference which we know is the difference in voltage. The Xiaomi version has a voltage of 5V while the Gocomma got 4.2V.

Some official sources about the Roidmi.

Upsides Downsides
  • Fast Charger
  • Easy Setup
  • Good Connection
  • FM Radio Always Sensitive for Disturbance
  • Did not Fit Properly
  • Background Noise with Microphone

Specifications

Roidmi stated that their product meets high standard safety requirements. With 8 circuits protection, like temperature protection, short-circuit protection and output overcurrent protection. This together with noise reduction and smart connection creates a smart car device.

  • Bluetooth v4.2
  • Background Noise Reduction
  • High-quality Chip from AnaNaviTek
  • Refined Stainless Steel Electrode, Just Like the Apple Watch’s Surface

The Roadmi S2 Functions

The Roidmi adds some major functions to your car without Bluetooth. Stuff you could not do without the Roidmi S2 are:

  • Hands-free calls
  • Music playing
  • Navigation broadcasting
  • Voice recognition
  • Car charging 4 in 1

Playing music and receiving calls with the Roidmi and your FM radio works excellent. When listening to music and a call is coming in, it will automatically switch to the conversation. The microphone itself works fine, but as with most car-kits the background noise is notable. People at the other side could hear us fine. However, a constructive conversation with the Roadmi is not recommend and presumably on the long run annoying.

The charger itself works great. If it’s actually faster than other chargers was hard to test. Normally when charging the smartphone and using apps at the same time, the battery seems steady. But, with the Roadmi it actually charged and after a half hour ride we gained some extra battery percentage. The voice recognition function did not work in our case, shaking the smartphone changed the song. Although, asking the Roadmi for a “Next Song” did not do anything. So in order to handle the music you still need to use your phone.

Is Your Car Compatible?

One major issue is the compatibility. The Roidmi does not work in every car or cigarette lighter. Even if the beneath picture states that your brand is compatible. Check it first, because if the charger is not the same as the left one on the picture. It really does not work.

Roidmi S2 Compatibility

Difference Between Versions

There are many different versions out there. Which makes it difficult what to expect. Beneath an overview about the different RoadMi versions and functions. Besides the latter, there are also different versions for China and the international market. The main difference for those is that the Chinese version does not understand English in the voice recognition feature.

roadmi-car-charger-version-overview

The Coolest Function – Bluetooth to FM

The most powerful feature of this gadget is the possibility to transmit calls and music from your smartphone to your car FM stereo system. This works great. Just find a frequency which does not contain a radio channel and setup the RoadMi app on the same frequency. With just one click the noise disappears. Now you can listen to your music with your favourite app (we used Spotify). The sound was certainly not bad, no doubt it heavily depends on your stereo system (which is not that great, in our test car).

Roadmi s2 fm music bluetooth

The Roidmi Driver App

The Roidmi app is not that special, it’s actually pretty basic and is only necessary for setting up the FM frequency.

Buy the Roadmi S2?

If it fits on your car and you want to listen to your favourite music on your FM radio? You need clearly buy the Roadmi. This feature works great and will not disappoint you. The other features are somewhat less important and are also working to a lesser extent. Calling with the microphone works fine, but the sound is definitely not great for the caller. The voice recognition does not always do what you want. But the charger is unquestionably worth it. So for a small amount extra than a normal car charger, you have the ability to listen to your music with Bluetooth.

Because the many different versions and shops selling the product. It’s surely worth to check out the latest prices.

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