XTOOL D7S
#1 in TabletFull review
The value pick for a home mechanic with newer cars: modern protocols, coding and cheap updates for under $400.
Amazon $399$399
The XTOOL D7S is the better OBD2 scan tool overall, rated 4.2 to 2.8. The XTOOL D7S leads on updates, advanced and warranty. The XTOOL D7S costs $220 less ($399 vs $619).
Autel MaxiCOM MK900BT
#22 in TabletFull review
The wireless version of Autel’s MX900, for home mechanics who want CAN FD, DoIP and 40 service functions without a cable to the dash. It has no ECU coding.
Amazon $619$619
Prices were last checked November 2, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Which should you buy?
- Choose the XTOOL D7S for updates (3 years of free updates, then $99 a year vs 1 year of free updates), advanced (ECU coding, CAN FD and DoIP vs CAN FD and DoIP) and warranty (2-year warranty vs 1-year warranty).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every tablet OBD2 scan tool; a clear win is highlighted. How we rank explains each one.
| Factor weight | XTOOL D7S | Autel MaxiCOM MK900BT |
|---|---|---|
| Overall rating | 4.2/5 | 2.8/5 |
| Price 25% | 54 $399 | 25 $619 |
| Service functions 15% | 97 39 service functions | 100 40 service functions |
| Advanced 20% | 80 ECU coding, CAN FD and DoIP | 40 CAN FD and DoIP |
| Updates 25% | 100 3 years of free updates, then $99 a year | 33 1 year of free updates |
| Warranty 15% | 50 2-year warranty | 0 1-year warranty |
Specifications
| XTOOL D7S | Autel MaxiCOM MK900BT | |
|---|---|---|
| Functions | ||
| Service functions | 39 | 40 |
| Vehicle makes | - | 150 |
| ECU coding | Yes | No |
| CAN FD and DoIP | Yes | Yes |
| Topology map | - | No |
| Hardware | ||
| Form | Tablet | Tablet |
| Screen | 7 in | 8 in |
| System | Android 10 | Android 11 |
| Wireless VCI | No | Yes |
| Battery | 4,932 mAh | 7,700 mAh |
| Support | ||
| Free updates | 3 years | 1 year |
| Renewal | $99 a year | - |
| Warranty | 2 years | 1 year |