Ancel FX6100 vs Autel MK808S

What the two scanners have in common

Both tools go well beyond a basic code reader. Each listing describes full system diagnostics, meaning engine, transmission, ABS, airbag (SRS), body and other modules, not just the engine computer. Each lists bidirectional active tests, so you can command a fuel pump, cooling fan, ABS pump or similar part to run and see whether it responds. Both also list FCA AutoAuth support for newer Chrysler, Dodge, Jeep and Ram vehicles with a security gateway.

That puts them in the same class. If you want to understand what active tests add, read what is a bidirectional scan tool. If you only need to read and clear check engine codes, either tool is more than you need.

Spec comparison from the listings

The table uses only the Amazon listing text. Where a listing does not mention a spec, we say Not stated rather than guess.

Updates and cost of ownership

This is the biggest practical difference. The Ancel FX6100 listing says it includes lifetime free Wi-Fi updates and contrasts that with scanners that charge a yearly fee after the first year. The Autel MK808S listing does not state its update terms, and its support notes mention subscription renewal. On many Autel tablets, the tool keeps working after the included update period, but new vehicle coverage and new functions stop until you renew.

If you plan to keep a scanner for years and work on newer cars as they come into your driveway, free updates are worth real money over time. If you mainly work on the cars you own now, the update question matters less. Our guide to scan tool updates and subscriptions explains what to check before you buy.

Services, coverage and hardware

The MK808S lists 28+ service functions and coverage for 150+ makes. The FX6100 lists 20 service resets and 50+ brands. Both include the common jobs DIY mechanics need, such as oil reset, electronic parking brake retraction for brake pad jobs, battery registration, ABS bleeding and throttle relearn, though the exact list varies by vehicle. If you work on a wide mix of brands, including less common European or Asian makes, the MK808S has the broader stated coverage.

The two tools are built differently. The FX6100 listing says you plug it into the OBD2 port and it powers on, with no charging or pairing, and that Auto VIN identifies the vehicle. The MK808S is an Android 11 tablet with a 4-core 1.8GHz processor, which suits users who like a tablet interface and want to save reports. Neither listing we used states the screen size.

See all bidirectional scan tools →

Who should buy which

Both scanners appear in our buying guides. See the best bidirectional scan tools for the full field, or the GM scanner guide and Jeep, Dodge and Chrysler guide if you own one of those brands. The MK808S also appears in our Autel scanner guide.

• Buy the Ancel FX6100 if you want a lower price, lifetime free updates and a simple plug in tool that does full system scans and active tests on mainstream US, Asian and European cars.
• Buy the Autel MK808S if you work on many different brands, want the larger stated service menu, or prefer a tablet with Autel's software and are fine paying for updates later.
• Check coverage first for either tool. Both brands offer coverage checks, and functions vary by make, model and year.

Before you buy either tool

Once you have the tool, our guide on how to use an OBD2 scanner covers connecting, reading codes and saving freeze frame data before you clear anything.

1. 1

   Write down your vehicles' year, make, model and engine.

2. 2

   Check each brand's coverage tool or ask the seller whether the functions you need, such as ABS bleeding or battery registration, work on your vehicle.

3. 3

   Decide whether update costs matter to you over the years you plan to own the tool.

4. 4

   Confirm your car's OBD2 port location and that the cable reaches comfortably. See where is the OBD2 port.

Frequently asked questions

Is Ancel as good as Autel? For core jobs like full system scans and active tests, the listings describe similar capabilities. Autel lists more services and more makes. Ancel lists free lifetime updates and a lower price.

Does the Ancel FX6100 need a subscription? The listing says updates are lifetime free over Wi-Fi with no yearly fee.

Does the Autel MK808S do ECU coding? Not stated in the listing we used. It lists active tests and 28+ services. For coding, see our ECU coding scanner guide.

Which is easier to use? The FX6100 listing stresses plug in and go with Auto VIN and plain English code descriptions. The MK808S is a full Android tablet, which many users find familiar but which needs charging.