To help you choose Autel MaxiSys Ultra and Ultra S2 diagnostic tool, we’ve put together a detailed breakdown covering:
- Hardware specifications
- Software features and performance
- Cloud service support
- Security Gateway (SGW) functionality
- Expanded functions
No matter what you value most—advanced programming capabilities, user-friendly operation, or forward-looking connectivity—this comparison will guide you toward the right choice.
Table 1: Hardware Comparison
| Hardware/Model | MaxiSys Ultra S2 | MaxiSys Ultra |
| Image |  |
 |
| Processor | Qualcomm 8-core | Samsung 8-core |
| RAM/ROM | 12GB/512GB | 8GB/256GB |
| Battery Capacity | 18000mAh | 18000mAh |
| Android Version | Android 13 | Android 11 |
| Display | 13.7 inch | 12.7 inches |
| Resolution | 2176*1600 | 2732×2048 |
| WIFI | 2.4&5GHz | 2.4&5GHz |
| Bluetooth | √ | √ |
| USB | USB2.0: (2 USB HOST Type A, 1 Type-C) | USB2.0: (2 USB HOST Type A, 1 USB Mini device) |
| HDMI Port | HDMI 2.0 | √ |
| SD Card | SD Card (Supports up to 256GB) | SD Card (Supports up to 256GB) |
| Audio Jack | √ | √ |
| Microphone Port | 4 MIC | √ |
| Speaker Port | √(2 Speakers) | √(2 Speakers) |
| GPS | √ | √ |
| Light Sensor | √ | √ |
| Buttons | 1 Lock screen power button | 1 Lock screen power button |
| Charging Dock | √ | √ |
| DC Fast Charging | √ | X |
| Camera | Front: 16MP, Rear: 16MP | Front: 16MP, Rear: 16MP |
| Lower Computer | MaxiFlash VCMI 2 | MaxiFlash VCMI |
| Connection method between upper and lower computers | WiFi/BT/USB | WiFi/BT/USB |
Conclusion:
Ultra:
- Samsung octa-core processor, 8GB RAM, 256GB storage
- Includes HDMI, dual USB, SD card slot, audio jack, 4 mics
- Reliable performance for diagnostics and programming
Ultra S2:
- Enhanced processor, more memory, longer battery life
- Built-in remote expert programming support in lower computer
- Connects to a second Wi-Fi network (Ultra uses one shared network)
Table 2: Software Comparison
| Item | MaxiSys Ultra S2 | MaxiSys Ultra |
| Basic Functions | ||
| Read/Clear Codes | ✓ | ✓ |
| Data Stream | ✓ (3.0, Multi-system) | ✓ (2.0 Single system) |
| Freeze Frame | ✓ | ✓ |
| ECU Information | ✓ | ✓ |
| Service Functions | ✓ | ✓ |
| Special Functions | ✓ | ✓ |
| Active Test | ✓ | ✓ |
| Advanced Functions | ||
| ECU Online Programming | Offline version: Benz, BMW, Mini, Nissan GT-R, Infiniti, Hyundai, Kia, Subaru, Land Rover, Jaguar, Audi, VW, Skoda, Porsche, GreatWall, Renault | Benz, BMW, Mini |
| ECU Online Coding | Offline version: Benz, BMW, Mini, Audi, Porsche, VW, Brazil, Nissan/GTR, Inifiniti, Renault, Kia, Hyundai | Benz, BMW, Mini, Audi, Porsche,VW |
| Hidden refresh | BMW, VW, Audi, Skoda | BMW, VW, Audi, Skoda |
| Guided Functions | VW, Audi, Skoda, Seat, Man LD | VW, Audi, Skoda, Seat, Man LD |
| High Voltage System Diagnosis | ✓ | ✓ (need to bind with EVDiag box) |
| High Voltage Battery Pack Offline Test | ✓ (need to bind with EVDiag box) | ✓ (need to bind with EVDiag box) |
| High Voltage Component Test | ✓ (need to bind with EVDiag box) | ✓ (need to bind with EVDiag box) |
| SOH – Battery Health Assessment | ✓ (need to bind with EVDiag box) | ✓ (need to bind with EVDiag box) |
| Topology Map | ✓ (3.0) | ✓ (2.0) |
| New Features | ||
| Vehicle Identification (Independent entry on main interface) | ✓ | X |
| Digital Vehicle Detection | ✓ | X |
| AI Voice Assistant | ✓ | X |
| Special Vehicle Diagnosis | ||
| McLaren Diagnosis | ✓ | ✓ |
| Tesla Diagnosis | ✓ | ✓ |
Conclusion:
Ultra:
- Full programming and coding for Mercedes-Benz/BMW/Mini
- Data Stream 2.0 + Topology Map 2.0 — clear and user-friendly
- Covers diagnostics, coding, programming, and hidden features for supported models
Ultra S2:
- Offline programming and coding for more brands
- Upgraded to Data Stream 3.0 + Topology Map 3.0 — richer data visualizations
- Built-in high-voltage diagnostics (no extra EV box needed)
- New: Vehicle ID, digital vehicle inspection, AI voice assistant
Table 3: Cloud Services+ Extended Features+ SGW Comparison
| Item | MaxiSys Ultra S2 | MaxiSys Ultra |
| Cloud Services | ||
| Remote Expert C-End | ✓ (Except Europe) | ✓ (Except Europe) |
| Report Management | ✓ | ✓ |
| TPMS Comprehensive Function | ✗ | ✗ |
| Extended Features | ||
| Oscilloscope Function | ✓ (3.0) | ✓ |
| Multimeter Function (MV105/MV108/MV105S/MV108S) | ✓(Optional) | ✓(Optional) |
| Four-Wheel Alignment | ✓(Optional) | ✓(Optional) |
| Battery Test (BF1506) | ✓(Optional) | ✓(Optional) |
| Add EVBox Upgrade or EV Product | ✓(Optional) | ✓(Optional) |
| Multimeter | ✓ | ✓ |
| J2534 & RP1210 | ✓ | ✓ |
| DoIP | ✓ | ✓ |
| CAN FD | ✓ | ✓ |
| Pre & Post Scan | ✓ | ✓ |
| Auto VIN | ✓ | Auto detect, Manual input, Scan VIN/License |
| WiFi Printing | ✓ | ✓ |
| Gateway Unlock Function | ||
| FCA Gateway Unlock | ✓ (May vary by region) | ✓ (May vary by region) |
| Renault Gateway Unlock | ✓ | ✓ |
| Nissan Gateway Unlock | ✓ (Japan, parts of Europe and North America only) | ✓ (Japan, parts of Europe and North America only) |
| VAG SFD Gateway Unlock | ✓ | ✓ |
| Benz Autoauth Gateway Unlock | ✓ (USA only) | ✓ (USA only) |
Conclusion
Ultra:
- Supports J2534, RP1210, DoIP, CAN FD, Auto VIN, Pre/Post Scan
- Compatible with EV kit, battery tester, endoscope, and more
Ultra S2:
- Includes upgraded Oscilloscope 3.0
Which One Should You Choose?
1.MaxiSys Ultra — Best Value
For repair shops that want flagship-level performance on a budget
- Large 12.7″ display, 8GB RAM, 256GB storage
- Includes VCMI (oscilloscope, multimeter, CAN analysis)
- Topology Map 2.0 & Data Stream 2.0
- Lower cost than Ultra S2
2.MaxiSys Ultra S2 — Top Flagship
For high-end shops that want the latest tech and AI features
- More powerful hardware, larger screen
- Topology Map 3.0 & Data Stream 3.0
- AI voice assistant + digital vehicle inspection (DVI)
- Pre-scan/Post-scan reporting
Summary
Ultra offers excellent performance and expandability at a competitive price.
Ultra S2 adds stronger hardware, newer software features, AI support, and better connectivity.
Key Differences:
Ultra S2 has a faster processor and more memory
Ultra S2 includes AI, digital inspection, and upgraded data/topology features
Ultra S2 supports dual Wi-Fi and built-in high-voltage diagnosis
Ultra is more affordable; Ultra S2 is premium-priced
Choose Autel Ultra for value.
Choose Autel Ultra S2 for the latest technology.
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