Harley Benton CTG-20 BK USB Clip Tuner

I bought this tuner because of it's rechargable battery, since my previous clip tuner is showing humidity and temperature when it's "off" which means that when I need it every now and then, the battery is drained and the CR2032's are a bit expensive to use for only a single tuning. Also the environmental issues...

Got the tuner, charged the battery and tuned my guitar - so far so good. But when I came back to it some time later (I mostly use a pedal tuner, so the clip is for backup) the battery was drained again. I recharged it, used once and the next time I picked it up it was empty again. So after a bit of testing I found that the battery doesn't hold any charge. I reported it to Thomann and they sent me a new one, but this one is really struggling to tune the 6-th string and is absolutely unusable for bass. The chromatic mode shows you the whole alphabet when tuning a string so you have to use the designated guitar tuning mode to the job done.

I really like the swivel design and the coloured screen is amazing. Also I like that in addition to the rotary dial it shows in numbers how far off you are which makes finetuning a lot easyer but unfortunately the tuner part being incompetent ruins the good idea. Also you can accidentally change the tuning from 440 to 441, 442 etc. without noticing or change the tuning mode which is done by pushing the power button, so when turning the device off and not pressing the button long enough you change the tuning mode to say ukulele or violin and the next time you use it starts up in this mode and can cause some confusion.

Since it's so cheap I'm going to keep it for tuning at home but I wouldn't take it to band practice an certainly wouldn't go on stage with it.

It tunes fine (most of the time), feels sturdy enough and doesn't fall off. I've had it in my backpack / gig bag full of stuff and it hasn't snapped or broken yet. Has multiple tuning modes; Chromatic, Guitar, Bass Ukulele and some more I cant remember. Chromatic mode has sharps. you can also change the frequency in chromatic mode if you want to tune a quarter step down or something.
Sometimes when I'm tuning my Low E it will just stop or show a B for some reason. Only happens in chromatic mode though.

Headstock tuners work fine but at the end of the day pedal tuners will ALWAYS win in accuracy.

I purchased this tuner to use it on bass guitars, but it doesnt work well, specially on E and B strings. Higher pitch strings, it wors fine. G and C strings are easy to tune. But for lower stringd, It does not capture the vibration of the strings. Hitting the string soft or hard, does not matter. A couple times the tuner showed the string tunning information after 5 seconds I played the string. Even if it was consistently showing the tuning after a few seconds (what is not the case), it would take minutes to tune the instrument.
The tuner has both chromatic and bass modes, and neither works well.