These seem to be the "best/newest" cheap ~100MHz (pseudo) in the $60-70 price range.
The YEAPOOK ADS5012h goes for about $65 on aliexpress and claims:
100MHz analog bandwidth
500MSa/s sampling rate
128kbit Sample Memory Depth
HD Screen: 2.4in TFT-LCD touch display with 320*240 resolution.
Auto/Normal/Single 3 Trigger mode
4.5*2.9*1.4in size & 400g weight
MUSTOOL MDS120M goes for about $63 on Banggood and claims:
120MHz bandwidth and 500MSps sampling rate
4 speeds of square wave signal output function(1kHz,10KHz,100KHz,1MHz)
320x240 LCD screen, 50mm x 40mm display
124 X 80 X 35mm size
Auto/Single/Normal
Now the YEAPOOK was reviewed on an EEVBlog youtube relatively negatively in large part because of its overstated bandwidth claims.
It sems that MUSTOOL is also likely exaggerating the bandwidth - with both of them likely performing more like a 20-25MHz single channel scope.
But while they are no match for my Siglent 1104X-E, it will be nice to have a cheap portable scope that I can drag around the house or use with my kids and that can run on batteries without needing to drag along a cord -- since most of the time I just need to see a signal or look at the waveform character or quality or even just estimate basic voltage and wavelength/frequency parameters -- rarely above a couple of megahertz and thus all well within the range of such scopes.
So accepting that they are low end, has anybody compared them in practice head-to-head?
Any reason to buy one more than the other??
Thanks