Andonstar AD409 Max
#4 in DigitalFull review
A full soldering workstation built around a 4K screen microscope, for people who repair boards every week. Hobby users can get the same picture for much less.
Amazon $419.99$419.99
The Andonstar AD409 Max is the better microscope overall, rated 3.8 to 3.7. The Andonstar AD409 Max leads on viewing and warranty. The TOMLOV TM4K-AF Flex wins on price. The TOMLOV TM4K-AF Flex costs $170 less ($249.99 vs $419.99).
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.
TOMLOV TM4K-AF Flex
#7 in DigitalFull review
An autofocus 4K scope on an articulating arm for soldering and repair work where the board keeps moving. Coin users who only need a fixed view can spend less.
Amazon $249.99$249.99
Which should you buy?
- Choose the Andonstar AD409 Max for viewing (10.1 in screen, HDMI, PC, Wi-Fi vs 8 in screen, HDMI, PC) and warranty (2-year warranty vs 1-year warranty).
- Choose the TOMLOV TM4K-AF Flex for price ($249.99 vs $419.99).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every digital microscope; a clear win is highlighted. How we rank explains each one.
| Factor weight | Andonstar AD409 Max | TOMLOV TM4K-AF Flex |
|---|---|---|
| Overall rating | 3.8/5 | 3.7/5 |
| Price 10% | 10 $419.99 | 38 $249.99 |
| Optics 25% | 100 2,160p live/video resolution | 100 2,160p live/video resolution |
| Working distance 15% | 50 working distance not published (neutral score used) | 50 working distance not published (neutral score used) |
| Viewing 20% | 100 10.1 in screen, HDMI, PC, Wi-Fi | 79 8 in screen, HDMI, PC |
| Features 20% | 55 measurement software, remote, boom or flex-arm stand | 50 autofocus, remote, boom or flex-arm stand |
| Warranty 10% | 25 2-year warranty | 0 1-year warranty |
Specifications
| Andonstar AD409 Max | TOMLOV TM4K-AF Flex | |
|---|---|---|
| Optics and imaging | ||
| Video resolution | 2160p | 4K 2160p |
| Photo resolution (stated) | - | 52 MP |
| Magnification claim (not scored) | - | 2-2000x |
| Autofocus | No | Yes |
| Viewing and output | ||
| Screen | 10.1 in | 8 in |
| Outputs | HDMI, PC, Wi-Fi | HDMI, PC |
| Measurement software | Yes | No |
| Remote | Yes | Yes |
| Stand and lighting | ||
| Stand | Boom | Flex arm |
| Lights | Top | Top |
| Built-in battery | No | No |
| Build | ||
| Warranty | 2 years | 1 year |