Zoyi ZT-703S
#1 in 50 to 99 MHzFull review
A very low-priced 3-in-1 at 50 MHz, a good first scope for repairs.
Amazon $89.99$89.99
The Zoyi ZT-703S and the FNIRSI 2C53P are evenly matched, rated 3.2 and 3.1. The Zoyi ZT-703S leads on value. The FNIRSI 2C53P wins on features. The Zoyi ZT-703S costs $26 less ($89.99 vs $115.99).
Prices were last checked November 9, 2026. Product prices and availability are accurate as of that date and are subject to change; the price and availability shown on Amazon or the retailer's site at the time of purchase apply. As an Amazon Associate we earn from qualifying purchases.
FNIRSI 2C53P
#2 in 50 to 99 MHzFull review
A step up from the 2C53T with a bigger touchscreen and a faster generator, for the same 50 MHz bandwidth.
Amazon $115.99$115.99
Which should you buy?
- Choose the Zoyi ZT-703S for value ($1.80 per MHz ($89.99, 50 MHz claimed) vs $2.32 per MHz ($115.99, 50 MHz claimed)).
- Choose the FNIRSI 2C53P for features (built-in multimeter, signal generator, built-in battery, touchscreen vs built-in multimeter, signal generator, built-in battery).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every 50 to 99 mhz oscilloscope; a clear win is highlighted. How we rank explains each one.
| Factor weight | Zoyi ZT-703S | FNIRSI 2C53P |
|---|---|---|
| Overall rating | 3.2/5 | 3.1/5 |
| Value 30% | 65 $1.80 per MHz ($89.99, 50 MHz claimed) | 54 $2.32 per MHz ($115.99, 50 MHz claimed) |
| Bandwidth 20% | 45 50 MHz claimed bandwidth | 45 50 MHz claimed bandwidth |
| Sample rate 10% | 47 280 MSa/s sampling | 44 250 MSa/s sampling |
| Memory 10% | 50 memory depth not published (neutral score used) | 50 memory depth not published (neutral score used) |
| Features 20% | 50 built-in multimeter, signal generator, built-in battery | 60 built-in multimeter, signal generator, built-in battery, touchscreen |
| Warranty 10% | 0 warranty not published, scored as none | 0 warranty not published, scored as none |
Specifications
| Zoyi ZT-703S | FNIRSI 2C53P | |
|---|---|---|
| Scope | ||
| Claimed bandwidth | 50 MHz | 50 MHz |
| Sample rate | 280 MSa/s | 250 MSa/s |
| Channels | 2 | 2 |
| Serial decode | No | No |
| Extras | ||
| Multimeter | Yes, 19,999 counts | Yes, 19,999 counts |
| Signal generator | Yes | Yes, up to 10 MHz |
| Build | ||
| Type | Handheld | Handheld |
| Display | 3.5 in | 4.3 in |
| Touchscreen | - | Yes |
| Built-in battery | Yes, 3,400 mAh | Yes, 4,000 mAh |