Research-based comparison: We have not hands-on tested these units. This page uses THINKCAR first-party documentation plus current Amazon catalog snapshots.
Affiliate disclosure: As an Amazon Associate I earn from qualifying purchases.
Quick Answer
Choose the THINKCAR THINKSCAN 672 if you want full-system diagnostics, bidirectional tests, CAN-FD, IMMO key matching and 28+ services at the lower current price. Choose the THINKSCAN 689BT if you need its verified ECU coding, DoIP, 35+ services, FCA AutoAuth, wireless/Bluetooth 5.0 platform and stated lifetime free updates.
THINKCAR 672 vs 689BT
| Area | THINKSCAN 672 | THINKSCAN 689BT |
|---|---|---|
| Diagnostic scope | Full-system diagnostics for 140+ brands stated by THINKCAR | All-system wireless diagnostics |
| Bidirectional / active tests | Verified | Verified |
| ECU coding | Not verified in the evidence set used here | Verified, vehicle-dependent |
| IMMO | IMMO key matching on supported vehicles | Not used as a differentiator in this evidence set |
| Service functions | 28+ | 35+ |
| Protocols | CAN-FD | CAN-FD + DoIP |
| FCA gateway | Not used as a differentiator here | FCA AutoAuth listed |
| Updates | Check current official term | Lifetime free updates stated by THINKCAR |
| Hardware / connectivity | Standalone THINKSCAN tablet | 8-inch touchscreen, Bluetooth 5.0, 4GB/64GB |
| Current price snapshot* | $260.99 | $474.86 |
*Prices and availability can change.
Why Choose the THINKSCAN 672?
The 672 already reaches the full-system bidirectional tier and includes 28+ services plus supported IMMO key matching. If you do not need verified ECU coding or DoIP, it is the much cheaper path to advanced diagnostics.
Check current THINKSCAN 672 price on Amazon →
Why Choose the THINKSCAN 689BT?
The 689BT adds several concrete verified upgrades: ECU coding, DoIP, 35+ services, FCA AutoAuth, Bluetooth 5.0 and lifetime free updates. Those are meaningful workshop-oriented differences if you will actually use them.
Check current THINKSCAN 689BT price on Amazon →
Is the 689BT Upgrade Worth It?
For basic full-system diagnosis and active tests, the 672 already covers the central tier. The 689BT premium is easier to justify for users who need coding, DoIP, FCA gateway access, more services, or its wireless hardware workflow. Coverage remains vehicle-dependent on both.
Bottom Line
672 = lower-cost full-system bidirectional scanner with 28+ services and supported IMMO matching. 689BT = coding, DoIP, more services, AutoAuth, wireless hardware and lifetime updates at a much higher price.
Methodology & Sources
We compared current THINKCAR first-party documentation and kept coding, IMMO, service and active-test claims conditional where vehicle coverage varies. Manufacturer sources remain non-clickable research evidence. Amazon is used only for current listing and price snapshots.