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Umi Hammer S Review

by Linus 400 views17

It is obvious that the Chinese smartphone market is crowded with lots of cheap devices and a lot of small companies that include Umi. They have produced quite a lot of devices already but the last reviewed phone (Umi Iron) had quite a few bugs, which was a let down (they may have been fixed by now as much time has passed). This time around we are looking at another budget phone – Umi Hammer S. Is it any good? This is what we are going to find out.

Umi Hammer S Review: VIDEO

Umi Hammer S Review: SPECS

5.5″ 720P (HD)
MTK6735, Quad Core, 1GHz
2MP Front/13MP
3.200 mAh (removable)
154.2 x 77.4 x 8.5mm / 200g
Android 5.1
16GB (expandable via microSD card slot up to 64GB)

Umi Hammer S Review: UNBOXING

IMG_4216 IMG_4398
The phone comes with usual stuff you can expect and that includes a charging brick, some documentation and last but not least the USB Type-C cable.

Umi Hammer S Review: DESIGN and DISPLAY

When it comes to the design of the phone, we are looking at the combo of metal chassis, all-glass front and a soft plastic back and it sits comfortably in the hand due to rounded corners on the back.
The Umi Hammer S comes with 5.5” 720P display, which is okay to look at indoors but it has quite a poor sunlight visibility, which is common to most of the budget phones.


A 2MP snapper, earpiece and the sensor light are on the top and 3 non-backlit capacitive buttons are on the bottom.
On the back we have a 13MP shooter with dual LED flash and right underneath it there is a fingerprint scanner.
IMG_4234 IMG_4236
Under the hood there is a removable 3200mAh battery, two SIM card slots and the microSD card slot.
On the right we have very clicky and responsive volume rocker and the power button.
The speaker grill is on the bottom, which sits next to the USB Type-C port.
On the top we have a headset jack and the IR blaster.
Overall, I kind of like the design and choice of materials. The build quality is great too. The Umi Hammer S is nothing you haven’t seen as far as exterior goes but there are a lot worse looking phones, in my opinion.

Umi Hammer S Review: UI

The phone runs on Android 5.1 Lolipop and you are getting a pretty much stock Android experience.
Umi changed the design of some icons and added a bit of extra functionality like gesture controls. Some of them work great while other not so great. Well, the only feature I use on all the devices is the “double click to wake”.
Although the fingerprint scanner is not the fastest I’ve seen, I am satisfied with how the it works but the setup process is a bit slower and the interface is different than other China phones I’ve tested.
All in all, the UI performance is smooth most of the times and this is what you usually get when the phone is running near stock Android build.

Umi Hammer S Review: BENCHMARKS

Umi Hammer S Review: PERFORMANCE

Umi Hammer S has a MTK6735 chip, 2GB of RAM and 16GB of expandable storage. This is a combo we’ve seen on a lot of Chinese phones lately but not all of them are well optimised.
Playing 3D games is possible but there is quite a lot of stutter and skipped frames, and graphics don’t look impressive.

Umi Hammer S Review: MULTIMEDIA

The multimedia consumption experience is on par with other similarly priced China phones. You are getting a tinny sounding loudspeaker and the sound via earphones is okay but nothing spectacular.

Umi Hammer S Review: CAMERA

The 13MP camera on the back is sometimes capable of producing okay looking images that can be used for social media. However, usually images have a poor colour reproduction, the dynamic range and exposure are usually off and some photos come out a bit blurry meaning that the shooter is having a hard time focusing.
The night images do not impress either. There is just so much noise, the level of details is poor but most importantly there is a red tint in some pictures.
It’s me, tired. As usual.
The 2MP selfie snapper will do the trick for social media if you tend taking selfies with plenty of light.
As far as video recording, the footage lacks in many aspects but this is what you have to expect in this price range of phones (see the sample in the video review). And yeah, the sound quality is just terrible.

Umi Hammer S Review: CONNECTIVITY

As far as connectivity options go, Umi Hammer S has the 4G LTE support and the call quality is decent. Other options that include wifi and Bluetooth work fine and while GPS is not the fastest to get a position lock, it gets the job done while navigating in the streets.

Umi Hammer S Review: BATTERY LIFE

The phone comes with 3200mAh removable battery, which performed really good in Geekbench 3 battery test. The Umi Hammer S managed to achieve almost 10 hours of screen-on time with the dim feature off. That’s really impressive. For example, I remember that the Letv Le 1 Pro could barely get over 4 hours.
In real life you may not achieve the same results but the phone will definitely get you through the day and more depending on how you are going to use the device.

Umi Hammer S Review: CONCLUSIONS

So here it is, the Umi Hammer S. For the price of just over $130 you are getting a decently designed phone, which has a good build quality.
Also, Umi Hammer S has almost stock Android build and it is running smoothly most of the times.
In addition, the battery life is really good and some extra functionality like a fingerprint scanner and USB Type-C are great features for the price.
However, the processing power is not really capable of providing a decent gaming experience, the camera does not impress and the display is of a mediocre quality.


All in all, Umi Hammer S is another China phone that has its ins and outs that you have to consider before buying. It is not a bad choice for the price and in the areas that the phone is lacking it is hard to find a similarly priced phone that would be significantly better… But you may find something similar.
Buy Xiaomi Mi5
  • Muhammad Yasir

    lol linus… that selfies makes it look like u just woke up :p !

    and is it me or are there TOO many bad reviews nowadays ?! is the china phone business going downhill ?!

    • honestly, I work too much and do other things except sleeping enough. This is me during the day 😀
      well, it isn’t a bad review per se. I just told the shortcomings the phone has. Most of the China phones have the same issues and it is very hard to find perfect devices in this price range 🙂

      • Muhammad Yasir

        hahaha ! whats your main line of work ?

        • guess what? Making videos and writing articles 😀 working here, my own channel and then you know, family and social life 😀 making one video review takes quite a lot of time (I am not talking about those recent “live unboxings” where you asked WTF) 😀

          • Muhammad Yasir

            hahaha … it was actually WTH

            so how do you make a living JUST by writing articles and making videos ?!

          • by working hard every day without rest days 🙂 well, sometimes I take half a day or even 1 full day off! 😀 anyway, I just love what I’m doing and I don’t complain at all!

          • Muhammad Yasir

            nice 🙂

  • Wurstel

    The Wifi is faulty and disconnects every few minutes. Should be mentioned. Cannot recommend this phone, its mediocre and buggy.

    • ohh really? I didn’t experience that on my unit but thanks for sharing that with the readers. Must be some units affected then…

  • TL;DR version: this is another very average Chinese phone. Moving on…nothing to get excited about here. Sometimes I feel like Chinese phones are like a harbinger of things to come for the West: smartphones as consummables, as boring as batteries.

  • Najib Ar-Rahman

    200g???? And only 3,200 mAH battery? Sounds like a bad combo…..

    Anyway Linus, between this and the Elephone M1 (which I can get for slightly cheaper price), which one would you recommend?

    • The phone didn’t feel that heavy but this is the official specs.. The battery is actually pretty good on this device as I could get almost 10 hours of screen-on time in geekbech 3.

      regarding Elephone M1, I am currently waiting for the review sample. I always need to check the phone myself to give my opinion 🙂

      • Najib Ar-Rahman

        Ah, Thanks for the reply.

        I’m still surprised you didn’t feel it heavy. The Elephone P8000 is about 189g and it feels substantial when it’s in your pocket. But atleast it came with 4,150 mAH battery.

        Anyways, I went for the Elephone M1 since they had their final flash sale yesterday – grabbed one for about US$107. Still waiting to receive the unit.

    • tako

      it is real 3200 mah battery , not like others , i bought it at 100 euros at promotion ,don’t regret at all , battery last 2 days

    • John

      Battery is replaceable! Carry a spare battery and now you have 6,400 mAH!

  • Acer_Predator

    The back is ugly and phone is chunky and battery only 3000 ? quite bad

    • John

      I think it looks good, at least in the pictures.