I am thinking of upgrading my oscilloscope, currently I mostly use an old handheld Vellman single channel scope, I want a decent sized screen so the neat little DSO palm sized scopes aren't in the running. I was looking through the Hantek 1008c virtual scopes on ebay when I came across the Vellman WFS210 which links by wifi to an Android or Windows device.

Looks ok for a budget scope.

Just upgraded my current Picoscope to one of these

https://www.picoauto.com/products/automotive-oscilloscope-kit/overview

Gone for the 4 channel advanced.

May have my old Pico 3424 up for sale after the new one arrives.

I have a TEKTRONIX TDS420 100mhz (150meg samples sec) came from a skip (leaky caps) now fixed. and a TDS320 (500meg sample sec)

By comparison my place of work has bought a £300 chinese Storage scope.
having used it I would seriously consider buying one if the above go wrong.

have a look here