What’s different between TOPDON UltraDiag, ArtiDiag Pro and AD900BT diagnostic tools? Here’s a breakdown of the key differences to help you choose the best one for your needs.
Comparison Table
| Item | TOPDON UltraDiag | TOPDON ArtiDiag Pro | TOPDON ArtiDiag900 BT |
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| CPU | 1.8GHz 4-Core | 4-Core 2.0GHz | MT8766, 4-Core 2.0GHz |
| RAM | 2G | 4G | 2G |
| ROM | 32G | 64G | 32G |
| Battery | 10000mAh | 6100mAh/3.8V | 6300mAh/3.8V |
| Operating System | Android 11.0 | Android 10.0 | Android 8.1 |
| Screen Size | 20.3cm(8inches) | 17.8cm(7inches) | 17.8cm(7inches) |
| Touchscreen | √ | √ | √ |
| Screen Resolution | 1280*800 | 1024*600 | 1024*600 |
| WiFi | 2.4 & 5 GHz | 2.4 & 5 GHz | 2.4 & 5 GHz |
| Camera | Rear 5MP | Rear 8MP | × |
| Communication | Bluetooth | Main Cable | Bluetooth |
| Button | 2 | × | × |
| Read DTCs | √ | √ | √ |
| Clear DTCs | √ | √ | √ |
| Live Data | √ | √ | √ |
| I/M Readiness | √ | √ | √ |
| Freeze Frame Data | √ | √ | √ |
| O2 Sensor Test | √ | √ | √ |
| On Board Monitor Test | √ | √ | √ |
| Evap Test (Mode $8) | √ | √ | √ |
| Vehicle Information | √ | √ | √ |
| System Support | All Systems | All Systems | All Systems |
| Read ECU Information | √ | √ | √ |
| Data Stream | √ | √ | √ |
| Bi-Directional Control/Active Test | √ | √ | √ |
| Special Function(inside the control unit) | √ | √ | √ |
| Hot Functions | 30 | 35 | 28 |
| Online Coding | × | √ | √ |
| Flash Hidden Function | × | √ | √ |
| IMMO | √ | × | × |
| Gateway Access | FCA | FCA | FCA |
| Guided Function | × | √ | √ |
| AutoVIN | √ | √ | √ |
| SCAN VIN/License | √ | √ | × |
| CAN-FD | √ | √ | × |
| DoIP | × | √ | × |
| Remote Desk | √ | √ | √ |
| Repair Information | √ | × | × |
| DTC Look UP | √ | √ | √ |
| WiFi/PC | WiFi/PC | WiFi/PC | |
| Vehicle Coverage | 100+ | 72+ | 130+ |
| Update Method | WiFi | WiFi | WiFi |
| Software Update | 2 Years Free | 2 Years Free | 2 Years Free |
Which One Should You Choose?
- TOPDON UltraDiag – Best for Professionals & Advanced Users
✅ Best for: Mechanics, technicians and advanced DIYers who need a powerful, large-screen tool with IMMO support and repair information.
✔ Pros:
- Largest battery (10000mAh) and screen (8 inches).
- Supports IMMO (immobilizer functions).
- Includes repair information.
❌ Cons:
No online coding or flash functions.
- TOPDON ArtiDiag Pro – Best for Coding & Programming
✅ Best for: Users who need advanced coding, flashing, and online programming features.
✔ Pros:
- Strongest CPU (2.0GHz) and most RAM (4GB).
- Supports online coding and flash hidden functions.
- Better camera (8MP) for scanning VINs.
❌ Cons: No IMMO support, smaller battery than UltraDiag.
- TOPDON ArtiDiag900 BT – Best for Wireless Diagnostics
✅ Best for: DIYers and small shops who prefer Bluetooth connectivity and wide vehicle coverage.
✔ Pros:
- Covers the most vehicles (130+).
- Bluetooth-enabled for wireless diagnostics.
- Affordable with essential functions.
❌ Cons: Older Android OS (8.1), no IMMO or repair info.
Final Recommendation
Need advanced diagnostics & repair? → UltraDiag
Want coding & flashing? → ArtiDiag Pro
Prefer wireless & broad coverage? → ArtiDiag900 BT
Each tool has unique strengths, so pick based on your specific needs!
