Thinkcar 673BT Bidirectional OBD2 Scanner or Thinkcar Thinkscan 672 All System? Which Thinkcar Model to Buy

As Amazon Associates, we earn from qualifying purchases. This means we may receive a small commission at no extra cost to you if you click through and make a purchase.

As an Amazon Associate we earn from qualifying purchases. Links on this page are affiliate links.

When comparing the thinkcar 673bt bidirectional obd2 scanner vs thinkscan 672 all system, you find two capable 7-inch scanners. Both offer full-system diagnostics, bidirectional control, and 28+ reset services. They share lifetime updates and Bluetooth 5.0 connectivity. The main difference lies in their hardware approach. The 673BT uses a wireless VCI for cable-free testing. The 672 relies on a detachable DB15 cable. Your choice depends on whether you prefer wireless flexibility or a wired connection.

Connectivity Type

Bluetooth 5.0 VCI (wireless)

Detachable DB15 cable (wired)

Internal Storage

64GB ROM

32GB ROM

Battery Capacity

4150mAh

3150mAh

Protocol Support

CAN FD, DoIP

CAN FD, KWP2000, UDS, SAE J1850, FCA AutoAuth

Height

1.8 inches

3.15 inches

Choose the first if

• You want wireless diagnostics up to 10 meters away from the vehicle.
• You need more internal storage for diagnostic data and software.
• You prefer a lighter, thinner device with a larger battery.

Choose the second if

• You require FCA AutoAuth support for 2018 and newer Chrysler vehicles.
• You prefer a wired connection via a detachable DB15 cable.
• You need support for additional protocols like KWP2000 and UDS.

Verdict

The 673BT is better for users who value wireless freedom and higher storage capacity. The 672 suits those who need specific protocol support like FCA AutoAuth or prefer a wired setup. Both tools provide comprehensive all-system diagnostics.

Hardware and Connectivity Comparison

Processor and RAM

Edge: Thinkcar 673BT 7-inch Scanner

The Thinkcar 673BT uses an Android 10 quad-core 2.0 GHz processor paired with 2GB of RAM and 64GB of ROM. This configuration supports faster analysis and smoother multitasking. The Thinkscan 672 relies on an MT8365 CPU with a 2.0GHz Cortex-A53 quad-core processor and 32GB of ROM. It does not list RAM specifications. The 673BT offers more internal storage and explicit memory allocation, which can improve performance during complex diagnostic sessions or when storing large data logs. The 672 provides adequate storage for most users but lacks the extra headroom found in the 673BT model.

Battery Capacity

Edge: Thinkcar 673BT 7-inch Scanner

Battery life affects how long you can work without plugging in. The Thinkcar 673BT features a 4150mAh battery, which supports all-day power for extended diagnostic tasks. The Thinkscan 672 includes a 3150mAh/3.8V battery. While sufficient for shorter sessions, the 673BT’s larger capacity provides a clear advantage for technicians who need to move between vehicles or work in locations without immediate charging access. The higher mAh rating in the 673BT ensures you spend less time waiting for a charge and more time diagnosing.

Connectivity and Cables

Edge: Thinkcar 673BT 7-inch Scanner

Connectivity options vary between the two scanners. The Thinkcar 673BT comes with a Bluetooth 5.0 VCI for wireless diagnostics up to 10 meters. This allows you to place the scanner away from the OBDII port for comfort. The Thinkscan 672 uses a 1.2-meter detachable DB15 diagnostic cable for connection. While it also supports Bluetooth 5.0, the primary link is the physical cable. The 673BT’s wireless VCI offers more flexibility in tight engine bays or when you need to view data while moving around the vehicle.

Physical Dimensions

Edge: Thinkcar 673BT 7-inch Scanner

Size and weight impact portability. The Thinkcar 673BT measures 9.8 inches in length, 5.9 inches in width, and 1.8 inches in height, weighing 1.68 pounds. The Thinkscan 672 is slightly larger in height at 3.15 inches, with dimensions of 9.84 inches by 5.91 inches. The 673BT is notably thinner and lighter. This makes the 673BT easier to carry in a tool bag or pocket. The 672’s thicker profile may be less convenient for storage in tight spaces, though both fit standard diagnostic kits.

Protocol Support

Edge: Thinkscan 672 7-inch All-System Scanner

Both scanners support modern protocols like CAN FD and DoIP for newer vehicles. The Thinkscan 672 explicitly lists support for KWP2000, UDS, and SAE J1850 standards, ensuring compatibility with older and diverse vehicle systems. The Thinkcar 673BT mentions CAN FD and DoIP but does not list the older ISO standards in its key specs. Both cover 96+ or 140+ brands. The 672’s explicit protocol listing provides clarity on legacy vehicle support, while the 673BT focuses on newer network technologies. Both are capable for modern repairs.

Choose Your Thinkcar Scanner

Users wanting wireless freedom

Our pick: Thinkcar 673BT 7-inch Scanner

The Thinkcar 673BT includes a Bluetooth 5.0 VCI for wireless diagnostics up to 10 meters. This lets you move freely around the vehicle without being tethered by cables. The Thinkscan 672 requires a 1.2-meter detachable DB15 cable for all connections, which can limit your positioning during complex repairs or tight engine bay access.

Pros needing longer battery life

Our pick: Thinkcar 673BT 7-inch Scanner

The Thinkcar 673BT features a 4150mAh battery, providing longer runtime for all-day use in the shop. The Thinkscan 672 has a smaller 3150mAh battery. If you perform multiple diagnostics daily without easy access to a power outlet, the 673BT’s larger capacity helps ensure the tool stays powered through heavy workloads.

FCA vehicle technicians

Our pick: Thinkscan 672 7-inch All-System Scanner

The Thinkscan 672 supports FCA AutoAuth for 2018 and newer Chrysler, Dodge, Jeep, and Ram vehicles. This allows access to security gateway modules, which is often required for advanced diagnostics. The Thinkcar 673BT data does not list FCA AutoAuth support, making the 672 the necessary choice for these specific brand repairs.

Users preferring wired stability

Our pick: Thinkscan 672 7-inch All-System Scanner

The Thinkscan 672 connects via a USB 2.0 port and a DB15 cable, offering a direct physical link to the vehicle. This wired approach can provide stable data transfer without wireless interference. The Thinkcar 673BT relies on Bluetooth 5.0 for its wireless VCI, which some users may prefer less for consistent, uninterrupted communication during critical tests.

Specifications side by side

Spec	Thinkcar 673BT 7-inch Scanner	Thinkscan 672 7-inch All-System Scanner
System Coverage	All-system	All-system
Reset Functions	28+	28
Protocol Support	CAN FD, DoIP	CAN FD, KWP2000, UDS, SAE J1850
Connectivity	Bluetooth 5.0, Wi-Fi	–
Screen Size	7"	7 inches
Software Updates	Lifetime	Lifetime
Color	Black	–
Recommended Use	Cars	Cars
Diagnostic Functions	Bi-Directional	Bi-Directional
Dimensions	9.8 × 5.9 × 1.8 inches	9.84 × 5.91 × 3.15 inches
Weight	1.68 pounds	–
Size	7.0"	–
Model	673BT	TK672

Frequently asked questions

Does the Thinkcar 673BT have a larger screen than the 672?

Yes, the Thinkcar 673BT features a 7-inch display, matching the Thinkscan 672. Both units provide a 7-inch screen size for clear diagnostics. This ensures you have ample space to view complex bi-directional test results and system data without straining your eyes during repairs.

Can I use the Thinkcar 673BT wirelessly?

Yes, the Thinkcar 673BT supports wireless Bluetooth 5.0 connectivity. This allows you to perform diagnostics up to 10 meters away from the vehicle. You can move freely around the car while the scanner communicates with the ECU, offering more convenience than wired connections.

What protocol support do these scanners offer?

Both scanners support CAN-FD and DoIP protocols. The Thinkscan 672 also includes FCA AutoAuth support. These protocols ensure compatibility with modern vehicles that use advanced communication standards. You can diagnose newer cars and trucks without worrying about outdated connection limitations.

Are both scanners bi-directional?

Yes, both the Thinkcar 673BT and the Thinkscan 672 offer bi-directional control. This function allows you to actively test components like fuel pumps or windows. You can send commands to the vehicle to verify if parts are working correctly during your diagnostic process.

Do these models cover all vehicle systems?

Yes, both the Thinkcar 673BT and the Thinkscan 672 provide all-system coverage. You can access diagnostics for the engine, transmission, ABS, airbag, and other modules. This comprehensive coverage helps you identify issues across the entire vehicle without needing multiple specialized tools.

How heavy is the Thinkcar 673BT scanner?

The Thinkcar 673BT weighs 1.68 pounds. This weight makes it portable enough for daily use in a garage or on the road. You can carry it easily in your tool bag without it becoming a burden during long diagnostic sessions.

Does the Thinkscan 672 include lifetime updates?

Yes, the Thinkscan 672 includes lifetime software updates. This feature ensures your scanner remains compatible with new vehicle models released over time. You do not need to purchase additional update packs, keeping your diagnostic capabilities current without extra costs.

See also

• thinkcar vs mucar obd2 scanner
• thinkcar vs ANCEL obd2 scanner
• 2-in-1 vs all in one travel system
• ONCE FOR ALL vs KEOUKE mandoline