A two-channel handheld oscilloscope with 50 MHz bandwidth, 250 MSa/s sampling and 128K memory, a 3.98-inch resistive touchscreen, a built-in seven-waveform signal generator and a 3000 mAh battery.
The bottom line A capable handheld with a real specification — bandwidth, sampling, memory — and a generator built in. Triggering and probes are not described, and both matter the first time a signal needs to be captured cleanly.
The BSIDE O2 listing, bullet by bullet
Five bullets: two channels with 50 MHz bandwidth, 250 MSa/s and 128K memory, automatic or manual capture of many waveform types and a persistence function; a resistive touchscreen usable with gloves and a side wheel; a 3.98-inch full-view colour TFT with lockable display and one-click waveform saving; a DDS signal generator with seven waveforms; and a slim, rechargeable build with a 3000 mAh battery for more than ten hours.
Bandwidth and sampling on a handheld
50 MHz at 250 MSa/s is five samples per cycle at the bandwidth limit. That is enough to see a signal’s presence and approximate shape at the top of the range, and comfortably more at the lower frequencies car and hobby electronics mostly produce.
A touchscreen that takes gloves
A resistive screen responds to pressure rather than skin, which is why the listing can say gloves work. On a workshop floor or in a car, that is a practical choice over a capacitive screen.
What the O2 listing leaves out
Trigger modes, probes and decoding. A scope without a described trigger can still show a repeating signal, but catching a single event depends on it, and the manual is where to confirm the modes.
Availability
At the last look-up, the German, French, Italian and Spanish Amazon stores were asking 75 € to 90 €.
It is sold in the British Amazon store as well, in its own currency, which the euro figures above leave out on purpose.
The American Amazon catalogue lists the product, yet no seller was offering it.
Every figure here is Keepa’s reading on the date this page was last updated. Stock and prices can change at any time.
Prices quoted in this text were read on 15 September 2026. The live price is at the top of the page.
Where it earns its place, and where it falls short
Strengths
50 MHz, 250 MSa/s and 128K memory in a handheld
A resistive touchscreen usable with gloves, plus a side wheel
A DDS signal generator with seven waveforms and a battery rated for over 10 hours
Compromises
No trigger modes described
Probes appear in the photograph but not in the listing text
No decoding
Specifications
Bandwidth
50 MHz, title and first bullet
Sample rate
250 MSa/s real-time, first bullet
Channels
2, title and first bullet
Memory depth
128K, first bullet
Triggering
Absent from the listing — automatic or manual waveform capture is described, first bullet
Decoding
Absent from the listing
Licensed features
Absent from the listing
Probes supplied
Absent from the listing text — the product photograph shows two probes
Amazon reference
B0DHCNZCF4 (same reference on 6 Amazon marketplaces)
EAN
6933540317571
Questions makers ask before buying
Does the BSIDE O2 work with gloves?
The second bullet says the resistive touchscreen can be used with fingers, including gloved ones, as well as styluses and pens, and a side wheel is available too.
What can the O2 signal generator output?
The fourth bullet lists seven waveforms: sine, square, half-wave, full-wave, triangle, ramp and DC, with adjustable frequency, amplitude and duty cycle.
A two-channel 50 MHz handheld oscilloscope at 250 MSa/s with a 10,000 waveforms-per-second refresh, an independent 4½-digit true RMS multimeter, and a USB-C port that shows saved images and CSV waveforms as a flash drive.
Best for: Bench and field debugging where waveforms need to be saved as CSV and analysed on a computer later.
A pocket oscilloscope with two analogue and two digital channels, 15 MHz bandwidth, 100 MSa/s sampling and 4K sample depth, a 3-inch colour screen and 8 MB of storage exported over micro-USB.
Best for: A beginner learning on microcontroller and audio circuits, where digital channels matter more than bandwidth.
20 MHz · 250 MS/s · 2 channels · 10,000 points · 8-bit ADC · CAT II 400 V · 7 in, 800 × 480 · FFT, XY, 30 auto measurements · USB host, device and USBTMC · 3-year warranty
A two-channel benchtop oscilloscope with 20 MHz analogue bandwidth, 250 MS/s sampling and 10,000-point memory on a 7-inch 800 × 480 screen, with FFT, XY mode, thirty automatic measurements and USBTMC.
Best for: A training bench or hobbyist who wants a large screen, FFT and PC connectivity for signals below 20 MHz.
