TOPDON offers four models in its ONE lineup: ONE, ONE Lite, ONE Plus, and ONE Pro. These are designed to meet varying needs in automotive diagnostics, coding, and programming. Although the core diagnostic features are consistent across all models, there are significant differences in hardware power and advanced functionality. Check the comparison details below.
TOPDON ONE VS ONE Lite VS ONE Plus VS ONE Pro:
| Item | Topdon ONE | Topdon ONE Lite | Topdon ONE Plus | Topdon ONE Pro |
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| CPU | 8-Core 2.0GHz (MT8786) | 8-Core 2.0GHz (MT8786) | 8-Core 2.0GHz (MT8786) | 8-Core 2.2GHz (RK3576) |
| RAM | 4G | 4G | 4G | 8G |
| ROM | 128G | 128G | 128G | 256G |
| Battery | 10000mAh/3.8v | 10000mAh/3.8v | 10000mAh/3.8v | 15000mAh/3.8v |
| Operating system | Android 12.0 | Android 12.0 | Android 12.0 | Android 16.0 |
| Screen size | 10.1 inches | 10.1 inches | 10.1 inches | 12 inches |
| Touchscreen | Yes | Yes | Yes | Yes |
| Screen resolution | 1280×800 | 1280×800 | 1280×800 | 1600×1200 |
| WiFi | 2.4 & 5Ghz | 2.4 & 5Ghz | 2.4 & 5Ghz | 2.4 & 5Ghz |
| Camera | Rear 16MP | Rear 16MP | Rear 16MP | Rear 16MP, Front 16MP |
| Communication | Bluetooth/ WiFi | Bluetooth/ WiFi | Bluetooth/ WiFi | Bluetooth/ WiFi |
| Charging dock | x | x | x | Yes |
| VCI | ONE VCI | ONE VCI | ONE VCI | ONE VCI Pro |
| AutoVIN/SCAN VIN | √ | √ | √ | √ |
| Vehicle/Make Coverage | 120+ | 120+ | 120+ | 120+ |
| System Coverage | All Systems | All Systems | All Systems | All Systems |
| System Diagnostics | √ | √ | √ | √ |
| Read DTCs | √ | √ | √ | √ |
| Freeze Frame Data | √ | √ | √ | √ |
| Clear DTCs | √ | √ | √ | √ |
| Data Stream | √ | √ | √ | √ |
| Bi-Directional Control/Active Test | √ | √ | √ | √ |
| Special Function (inside the control unit) | √ | √ | √ | √ |
| Hot Functions | 52 | 52 | 52 | 52 |
| Multichannel Scanning | √ (Under Development) | √ (Under Development) | √ (Under Development) | √ (Under Development) |
| Live Data Fusion | √ (Under Development) | √ (Under Development) | √ (Under Development) | √ (Under Development) |
| Graphical Diagnostics | × | × | × | √ |
| Diagnostic Topology Display | √ | √ | √ | √ |
| DTC Repair Data | TopFix (AI) | TopFix (AI) | TopFix (AI) | TopFix (AI) |
| Guided Function | √ | √ | √ | √ |
| Coding | ||||
| Benz(SCN) | √ | √ | √ | √ |
| BMW/Mini | √ | √ | √ | √ |
| VW/Audi/Skoda/Seat | √ | √ | √ | √ |
| Porsche | × | × | √ | √ |
| Nissan | × | × | √ | √ |
| PSA | × | × | √ | √ |
| JLR | × | × | √ | √ |
| FORD | × | × | √ | √ |
| Volvo | × | × | √ | √ |
| Toyota | × | × | √ | √ |
| Flash Hidden | ||||
| Benz | √ | × | √ | √ |
| BMW | √ | × | √ | √ |
| VW/Audi/Skoda/Seat | √ | × | √ | √ |
| Porsche | × | × | √ | √ |
| JLR | × | × | √ | √ |
| PSA | × | × | √ | √ |
| Nissan | × | × | √ | √ |
| Toyota | × | × | √ | √ |
| FORD | × | × | √ | √ |
| Volvo | × | × | √ | √ |
| Programming | ||||
| BMW | x | × | √ (4 System) | √ (Full System) |
| Benz | x | × | √ (4 System) | √ (Full System) |
| VW/Audi/Skoda/SEAT | x | × | √ (4 System) | √ (Full System) |
| Nissan/Infiniti | × | × | × | × |
| Hyundai/Kia | × | × | × | × |
| Honda/Acura | × | × | × | × |
| Land Rover/Jaguar | × | × | × | × |
| Renault | × | × | × | × |
| Subaru | × | × | × | × |
| PMI Ford | √ (Under Development) | √ (Under Development) | √ (Under Development) | √ (Under Development) |
| PMI Mazda | √ (Under Development) | √ (Under Development) | √ (Under Development) | √ (Under Development) |
| PMI Opel | × | × | × | × |
| PMI Vauxhall | × | × | × | × |
| Advanced Protocol | ||||
| CAN-FD | √ | √ | √ | √ |
| DoIP | √ | √ | √ | √ |
| J2534 | √ | √ | √ | √ |
| Gateway Access | ||||
| Renault | √ | √ | √ | √ |
| FCA | √ (Europe/USA) | √ (Europe/USA) | √ (Europe/USA) | √ (Europe/USA) |
| Nissan | √ (Europe/USA) | √ (Europe/USA) | √ (Europe/USA) | √ (Europe/USA) |
| Infiniti | √ (Europe/USA) | √ (Europe/USA) | √ (Europe/USA) | √ (Europe/USA) |
| VW | √ | √ | √ | √ |
| DVI | × | × | × | √ |
| Split Screen | × | × | × | √ |
| AI Voice Assistant | × | × | × | √ |
| IMMO (KEY Coding) | × | × | √ | √ |
| Battery Test | √ (Optional) | √ (Optional) | √ (Standard with BTMobile ProS) | √ (Standard with BTMobile ProS) |
| TopScan Master | × | × | √ (Software renewal follows ONE Plus) | × |
| Oscillograph | × | × | × | √ |
| Endoscope | √ (Optional) | √ (Optional) | √ (Optional) | √ (Optional) |
| QuickSupport | √ | √ | √ | √ |
| B/C Remote Diagnostic | √ (C) (Under Development) | √ (C) (Under Development) | √ (C) (Under Development) | √ (C) (Under Development) |
| Update | 1 Year free update | 1 Year free update | 1 Year free update | 1 Year free update |
In conclusion
1. Hardware & Performance
All three share the same hardware specifications: 8-core 2.0GHz CPU, 4GB RAM, 128GB storage, and a 10.1-inch screen.
- ONE Pro:
Features a significant upgrade: faster 2.2GHz CPU, 8GB RAM, 256GB storage, a larger 12-inch 1600×1200 display, front camera, bigger battery, and a charging dock
Bottom line: ONE Pro is the only model equipped with true high-end hardware, making it suitable for heavy professional use.
2. Diagnostics
All models come with:
- Full-system diagnostics
- AutoVIN
- Bi-directional control
- Data stream
- 52 Hot Functions
- TopFix AI assistance
- Topology graph
Only Topdon ONE Pro adds:
Graphical diagnostics for enhanced visual troubleshooting
3. Coding
- ONE Lite & ONE:
Support coding for major brands (Mercedes-Benz, BMW, VAG), but with limited brand coverage.
- ONE Plus & ONE Pro:
Add support for additional brands such as Porsche, Nissan, PSA, Ford, Volvo, Toyota, and JLR, along with greatly expanded functionality.
Bottom line: ONE Plus and ONE Pro offer broad coding coverage, while Lite and base ONE models provide more basic capabilities.
4. Flashing Hidden Functions
- ONE Lite: Not supported
- ONE: Adds hidden function flashing for Mercedes-Benz, BMW, and VAG
- ONE Plus & Pro: Expand support to nearly all major brands, including Porsche, Ford, Nissan, and Toyota
Bottom line: The ONE Plus and ONE Pro are the best choices for activating hidden features.
5. Programming (ECU Programming)
- ONE Lite & ONE: No programming capability
- ONE Plus: Partial programming support for BMW, Mercedes-Benz, and VAG (4 systems)
- ONE Pro: Full system programming for BMW, Mercedes-Benz, and VAG at a professional level
Bottom line: ONE Pro is the only model with full programming capability.
6. Special & Advanced Features
- ONE Plus adds:
IMMO key coding
TopScan Master
Standard battery tester
- ONE Pro adds all of the above, plus:
DVI, Split Screen, and AI Voice Assistant
Oscilloscope support
VCI Pro
Best-in-class user interface and multitasking
Bottom line: The ONE Pro includes the entire ecosystem of TOPDON’s advanced features.
Final Recommendation
1. Topdon ONE
Ideal for: Basic diagnostics along with more extensive hidden function flashing.
Bottom line: A solid choice for entry-level professional work.
2. Topdon ONE Lite
Ideal for: Basic diagnostics paired with light, occasional coding.
Bottom line: An easy-on-the-budget option.
3. Topdon ONE Plus
Ideal for: Technicians who require advanced coding, IMMO support, partial programming, and a built-in battery tester.
Bottom line: Offers an excellent balance between features and cost.
4. Topdon ONE Pro
Ideal for: Professional shops that demand full programming, premium hardware, complete coding coverage, DVI, split-screen functionality, oscilloscope support, and VCI Pro.
Bottom line: The most powerful and feature-complete package on the market.