For a DIYer who wants coding and modern protocols with no update bills, from a brand that sells it direct on Amazon.
Amazon $499.95The Thinkcar ThinkScan 689BT is the better OBD2 scan tool overall, rated 3.7 to 3.6. The Thinkcar ThinkScan 689BT leads on updates and advanced. The Topdon ArtiDiag Pro wins on warranty and price. The Topdon ArtiDiag Pro costs $120.95 less ($379 vs $499.95).
A good value tablet for DIYers on older cars who want resets and active tests without paying for a wireless VCI.
Amazon $379Prices 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 Thinkcar ThinkScan 689BT for updates (free lifetime updates vs 2 years of free updates, then $249 a year) and advanced (ECU coding, CAN FD and DoIP vs ECU coding).
- Choose the Topdon ArtiDiag Pro for warranty (2-year warranty vs 1-year warranty) and price ($379 vs $499.95).
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 | Thinkcar ThinkScan 689BT | Topdon ArtiDiag Pro |
|---|---|---|
| Overall rating | 3.7/5 | 3.6/5 |
| Price 25% | 39 $499.95 | 58 $379 |
| Service functions 15% | 83 35 service functions | 83 35 service functions |
| Advanced 20% | 80 ECU coding, CAN FD and DoIP | 40 ECU coding |
| Updates 25% | 100 free lifetime updates | 67 2 years of free updates, then $249 a year |
| Warranty 15% | 0 1-year warranty | 50 2-year warranty |
Specifications
| Thinkcar ThinkScan 689BT | Topdon ArtiDiag Pro | |
|---|---|---|
| Functions | ||
| Service functions | 35 | 35 |
| Vehicle makes | 140 | 100 |
| ECU coding | Yes | Yes |
| CAN FD and DoIP | Yes | No |
| Hardware | ||
| Form | Tablet | Tablet |
| Screen | - | 7 in |
| System | - | Android 10 |
| Wireless VCI | Yes | No |
| Battery | - | 6,100 mAh |
| Support | ||
| Free updates | Lifetime | 2 years |
| Renewal | - | $249 a year |
| Warranty | 1 year | 2 years |
