The best mini oscilloscopes, compared.
Top pick: BSIDE two-channel 50 MHz – Highest score in the set: the only stated two-channel listing, 50 MHz and 250 MSa/s, with UK texts. Nine reviews, and one probe in the box. Best value: BSIDE OT3 (probe and clips) – 10 MHz at about £39.99, 4.6 from 31, with a probe and an alligator lead. A review calls it one channel. No CAT rating. Updated October 2026.
A mini oscilloscope is a battery handheld digital scope with a small colour screen. You buy one in the UK to see a voltage waveform that a multimeter number cannot show, on a hobby board, a low-speed sensor, or a first look at a vehicle signal. You tell a suitable mini oscilloscope by bandwidth against the job, then by channel count, sample rate with memory, and the probe factor. Bandwidth is the −3 dB point, already a soft ceiling. A rule of thumb is about three times the fastest sine, or about five times a digital clock if the edge matters, with a sample rate of at least 2.5 times that bandwidth. The ground clip is part of the hazard. A printed voltage is not a measurement category. Those checks are in the [mini oscilloscope buying guide](/hub/measuring-equipment/mini-oscilloscope/sub/mini-oscilloscope-buying-guide). UK mains are 230 V. A pocket screen is not a reason to open a consumer unit. Live work needs competence, or supervision, under the Electricity at Work Regulations 1989.
A mini oscilloscope is a battery handheld digital scope with a small colour screen.
26 products checked · 54 hrs invested · +17,800 readers
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Personal buying guide
Question 1 of 2
How many signals must you see at once?
The BSIDE two-channel listing at £79.99 states 50 MHz, 250 MSa/s, 128 K memory, a 3.98 inch colour touch screen, and a DDS generator with seven waveforms. The battery bullet says 3,000 mAh and more than 10 hours. The box lists one BNC probe, eight colour rings, a charge cable, a case, and a screwdriver. It shows 5.0 from 9 reviews, and the raw texts are from the United Kingdom. A retired engineer praises the build. Another buyer could not run normal or single trigger until firmware arrived. In this set it is the top pick when you need two traces. It does not state isolated inputs or a CAT rating.
Pros
Cons
Best for: You want two waveforms at once and you can add a second probe.
Less suitable: You need isolated inputs, a CAT-rated mains probe, or a large review sample.
Specifications
Common questions
Does this listing include two probes?
No. The bullet and the components line list one BNC probe, plus eight colour rings, a charge cable, a case, and a screwdriver.
Does it include a signal generator?
Yes. The listing names seven waveforms: sine, square, half, full, triangle, ramp, and DC. It does not state a maximum output frequency.
Did UK reviewers get normal trigger working?
One UK review says normal and single waited forever while auto was stable. The same buyer says a firmware update from the seller fixed it. The listing does not state a CAT rating.
This second BSIDE OT5 listing is also £59.99. It states 50 MHz, 200 MSa/s, up to 400 V, auto, normal, and single trigger, and a 3.2 inch colour screen. The cell is a 1,200 mAh lithium ion, included, charged by USB-C. Hours are not stated. The box lists the scope, a probe, a USB cable, an EVA bag, and a manual. It shows 5.0 from 3 reviews. The only text in the file is from Italy and describes finding a fault in an audio mixer. There is no CE line and no CAT rating.
Pros
Cons
Best for: You want this OT5 box list, with a bag and a manual, at £59.99.
Less suitable: You are choosing on UK review text. This file does not have one.
Specifications
Common questions
Is the battery included?
Yes. The technical table says one lithium ion battery is required and included. The bullet says 1,200 mAh. It does not state hours.
What trigger modes are listed?
Single, normal, and automatic, for periodic analogue and non-periodic digital signals. The title spells normal as Nomal.
Where are the reviews from?
The listing shows 5.0 from 3. The only review text in the saved listing is from Italy and describes an audio-mixer repair. It states no fault.
The DSO153 listing is £34.98 from Dandelionsky. It states 1 MHz, 5 MS/s, a time base from 500 ns to 20 s, and ±400 V with the included 10x probe. The generator bullet lists 14 waveforms and a maximum output of 10 kHz. The cell is 1,000 mAh, about four hours, charged by USB-C. The body in the bullet is 99 × 68.3 × 19.5 mm, while the technical dimensions are 21 × 15 × 5 cm. It shows 5.0 from 2 reviews, and the one UK text calls it easy and low cost and names no fault. The title’s “2 in 1” is scope plus generator, not two channels. No CAT rating is stated.
Pros
Cons
Best for: You want a low-frequency scope and a small generator in one pocket unit.
Less suitable: You need 10 MHz or 50 MHz, two channels, or an itemised kit.
Specifications
Common questions
Does 2 in 1 mean two channels?
No. The bullets describe an oscilloscope mode and a DDS generator mode. They do not print a channel count.
What can the generator output?
The bullet lists 14 waveforms, including sine, square, triangle, full wave, half wave, noise, and DC, with a maximum output frequency of 10 kHz.
What voltage does the probe claim?
The bullet says voltages up to ±400 V can be measured with the 10x probe in the package. It does not state a CAT rating. A full box list is not in the file.
This BSIDE OT5 listing is £59.99 and states 50 MHz, 200 MSa/s, 128 Kb, ±400 V, and a 3.2 inch colour screen. Languages on the interface are listed as English, German, French, Italian, and Chinese. The battery bullet says 1,200 mAh and more than 8 hours. The box lists one BNC probe, four colour rings, a charge cable, a case, and a screwdriver. It does not list an alligator lead. It shows 5.0 from 1 review, from the United Kingdom, for simple electronics where one channel is enough. The attribute line Minimum Operating Voltage says 400 volts, which matches the range claim rather than a minimum.
Pros
Cons
Best for: You want the 50 MHz OT5 bullet and you accept a single review.
Less suitable: You want clips in the box, two channels, or a larger UK review set.
Specifications
Common questions
How does this OT5 differ from the OT3 listings on bandwidth?
This listing states 50 MHz and 200 MSa/s. The OT3 listings in this set state 10 MHz and 48 MSa/s. Both quote a ±400 V or 400 V claim and no CAT rating.
Is an alligator lead included?
Not on this listing. The bullet lists one BNC probe, four colour rings, a charge cable, a case, and a screwdriver.
What do the reviews say?
The listing shows 5.0 from 1 review. That UK text uses it for simple electronics and says to buy it if one channel is enough. It names no fault.
This BSIDE OT3 listing is £39.99 and states 10 MHz, 48 MSa/s, 128 Kb, a 3.2 inch colour screen, and ±400 V. The battery bullet says 1,200 mAh and more than 8 hours. The box lists a BNC probe, a BNC-to-alligator lead, four colour rings, a charge cable, a case, and a screwdriver. It shows 4.6 from 31 reviews. UK texts use it on embedded boards, a LIN line, and a CAN-related throttle signal. One auto attempt drew a flat line. A review calls it one channel; the bullets do not. In this set it is the best value if 10 MHz and one trace are enough, and it is not a CAT-rated mains instrument.
Pros
Cons
Best for: You want a 10 MHz pocket trace and a probe plus clips at £39.99.
Less suitable: You need two channels, 50 MHz, or a proven multi-hour battery on this exact ASIN.
Specifications
Common questions
What bandwidth and sample rate does this OT3 state?
The bullet says 10 MHz and 48 MSa/s, with 128 Kb storage and a ±400 V measurement range. It does not state a CAT rating.
Are a probe and clips in the box?
Yes. The bullet lists one BNC probe, one BNC-to-alligator probe, four colour rings, a charge cable, a case, and an alignment screwdriver.
How many channels does the listing print?
The bullets do not print a channel count. A UK review calls it a 1-channel scope. There is no signal generator in this listing.
The FNIRSI DSO152 is £38.57 and states 200 kHz bandwidth and 2.5 MS/s, not a megahertz bandwidth. The screen is 2.8 inch at 320 × 240, with auto, normal, and single trigger. The cell is 1,000 mAh lithium polymer, included, about four hours, charged by USB-C. The bullet says a 10x probe can measure up to 800 V peak-to-peak, called equivalent to 280 V AC, and that voltages up to 400 V can be measured. The box lists the blue scope, a P6100 10x probe, and other accessories that are not itemised. It shows 4.4 from 425 reviews. The texts in the file are not from the United Kingdom, and they talk about amplifier clipping. No CAT rating is stated.
Pros
Cons
Best for: You only need a slow waveform, such as audio clipping, and you accept 200 kHz.
Less suitable: You need 10 MHz or 50 MHz, or you want UK review texts for this ASIN.
Specifications
Common questions
Is 2.5 MS/s the same as a 10 MHz scope?
No. This listing states 200 kHz bandwidth and 2.5 MS/s. The 10 MHz listings in this set state 48 MSa/s.
What voltage does the probe claim?
One bullet says the 10x probe can measure up to 800 V peak-to-peak, equivalent to 280 V AC, and that voltages up to 400 V can be measured. No CAT rating is stated.
Are the 425 reviews from the United Kingdom?
The count is on the amazon.co.uk listing. The review texts saved in the saved listing are from the United States, plus one from India. They discuss car-audio clipping more than UK bench work.
This BSIDE OT3 listing is £39.99 and states 10 MHz, 48 MSa/s, up to 400 V, and a 3.2 inch colour screen. The bullet says a built-in 1,000 mAh cell, while the technical table says batteries are not included and not required. The box lists a probe, red and black alligator clips, a data cable, a bag, and a manual. It shows 4.0 from 76 reviews. UK texts praise the x1/x10 probe and a saved capture over USB. One UK review says a full charge lasted about 15 minutes. Another says time bases slower than 100 ms/div work only in Auto. No CAT rating is stated.
Pros
Cons
Best for: You want this OT3 box, with clips and a manual, and you will check the cell yourself.
Less suitable: You need the 1,200 mAh and eight-hour claim from the other OT3 listing, or a long capture at a slow time base.
Specifications
Common questions
Is the battery included?
The bullet says a built-in 1,000 mAh lithium ion cell. The technical table says batteries included: no, and batteries required: no. The listing does not resolve that.
What did UK reviews say about runtime?
One UK review says a full charge lasted about 15 minutes and marks the scope down for that. A French review in the same file says under 30 minutes.
Does the probe come with clips?
The components line lists a probe, red and black alligator clips, a data cable, a bag, and a manual. A UK review calls the probe x1/x10.
Seven mini oscilloscope listings on amazon.co.uk were scored on 22 October 2026 from listing facts and review notes, not from a lab test or a measured bandwidth. Amazon stars, cut hard when the sample is tiny or the review texts in the file are not from the United Kingdom, stated bandwidth with sample rate and channel count, review sentiment on trigger, battery and a named job, and shelf price against the bandwidth that listing prints are weighted 25, 35, 25 and 15. Deductions can apply for a bandwidth of 200 kHz or 1 MHz, a 5.0 line from one, two or three reviews, review texts from outside the United Kingdom, a battery bullet that fights the technical table, a UK review of about 15 minutes, no CAT rating beside a voltage claim, two channels with one probe in the box, or normal and single trigger that needed firmware. Each star line stays the amazon.co.uk figure.
Amazon stars
25%Up to 25 points from the star average, cut hard when the sample is tiny or the review texts in the file are not from the United Kingdom. A 5.0 from one, two or three reviews does not outrank a deeper UK record. The star line stays the amazon.co.uk figure.
Bandwidth, sample rate and channels
35%Up to 35 points for the bandwidth, sample rate and channel count the listing states, against the job this category can actually do. A 200 kHz or 1 MHz bandwidth scores lower than 10 MHz or 50 MHz. A channel count that is not printed scores lower than a stated two-channel listing.
Review sentiment
25%Up to 25 points from review notes on trigger, battery and a named job. A firmware fix, a flat-line auto report, or a timed runtime of about 15 minutes counts here. Texts that are not from the United Kingdom do not stand in for UK opinion.
Shelf price against bandwidth
15%Up to 15 points for the shelf price against the bandwidth that listing prints. A lower price with 200 kHz does not beat 10 MHz at a similar price. The pounds do not tell you the bandwidth on their own.
Choose bandwidth first, then channels, then sample rate and memory, then the probe factor and the battery claim. The notes below follow that order for these seven listings. None of the scores is a laboratory test.
A mini oscilloscope is a battery handheld digital scope with a small colour screen. You use it to draw voltage against time when a multimeter number hides the shape of the wave. It is not a probe kit and it is not a clamp meter. You buy one in the UK for a first trace on a low-voltage board, a slow waveform such as audio clipping, or a pocket look at a vehicle sensor. None of the scores on this page is a laboratory measurement of bandwidth. Judge bandwidth first.
A 2.5 MS/s headline does not make a 200 kHz scope into a 10 MHz scope. Bandwidth is the −3 dB point. Read the sample rate only after the bandwidth fits the job.
Match the probe switch to the on-screen factor. A fuller sheet states ±40 V on x1 and ±400 V on x10. Hour claims run from about four to more than ten. One UK review timed about 15 minutes on a different listing.
The ground clip is part of the hazard. None of these listings states a CAT rating. Do not treat ±400 V as CAT II, CAT III, or CAT IV, and do not assume two probes when the box lists one.
Put bandwidth first. Audio clipping can live at 200 kHz. A hobby clock or a vehicle sensor wants 10 MHz before you trust the shape, and faster edges want 50 MHz. Bandwidth is the −3 dB point. Sample at more than twice that bandwidth, and use 2.5 times as a buyer minimum. The rate can fall when a second channel is on. Most listings here do not print a channel count. One states two channels and ships one probe. A 2 in 1 title can mean a generator, not two channels.
Match 1x and 10x on the probe and the screen. A voltage bullet is not a CAT mark, and none of these listings prints one. HSE GS38 expects probes that meet BS EN 61010-031, show a CAT mark, and keep the exposed tip to 4 mm or less. Battery claims run from about four hours to more than ten. One UK review timed about 15 minutes, and that listing’s battery lines contradict each other. Do not lift the protective earth to float a Class I scope. Shelf prices in this set run from about £34.98 to £79.99.
Three typical situations, each with a recommendation from this comparison.
You want one pocket channel for a hobby board and you will spend time on a small menu. The BSIDE OT3 with a probe and clips is about £39.99, 4.6 from 31 reviews, and states 10 MHz and 48 MSa/s. UK texts name embedded boards. The bullets do not print a channel count.
You need two traces, and you can add a second probe. The BSIDE two-channel listing is about £79.99, 5.0 from 9 UK reviews, and states 50 MHz and 250 MSa/s. The box lists one BNC probe. It does not state isolated inputs or a CAT rating.
You only need to see a slow waveform, such as audio clipping, where 200 kHz is often enough. The FNIRSI DSO152 is about £38.57 and states 200 kHz and 2.5 MS/s. amazon.co.uk shows 4.4 from 425 ratings. The review texts in the file are from the United States, not the United Kingdom.
In this set of seven amazon.co.uk listings, the top pick is the BSIDE two-channel 50 MHz at about £79.99. It is the only listing that states two channels, with 50 MHz, 250 MSa/s, a generator, and 5.0 from 9 UK reviews. The box lists one probe, and one buyer needed firmware before normal and single trigger worked. The best value is the BSIDE OT3 with a probe and clips at about £39.99, 4.6 from 31 reviews, stating 10 MHz and 48 MSa/s. The bullets do not print a channel count, and a review calls it one channel. The 200 kHz listing has more ratings and does not take this award, because those review texts are not from the United Kingdom and the bandwidth is 200 kHz. None of these scores is a lab test, and none of these listings states a CAT rating.
BSIDE two-channel 50 MHz
Highest score in the set: the only stated two-channel listing, 50 MHz and 250 MSa/s, with UK texts. Nine reviews, and one probe in the box.
BSIDE OT3 (probe and clips)
10 MHz at about £39.99, 4.6 from 31, with a probe and an alligator lead. A review calls it one channel. No CAT rating.
Editorial
Peter F. is the editor for DIY & tools at productscompared.co.uk. Comparisons in this category are checked against amazon.co.uk listings, review evidence and public UK sources.
Guides on what to look for, how to use a product, and common mistakes.
Public UK sources from the research digest, last checked on 22 October 2026. Shelf prices and star lines are the amazon.co.uk figures captured with these seven listings. The price bands are this set, not a market average.
This page contains affiliate links to amazon.co.uk. If you buy through them, we may earn a commission at no extra cost to you. Prices, stars and review counts are from the UK listings checked on 22 October 2026. We did not lab-test these mini oscilloscopes.
