Launch X431 released new generation Smartlink C V4 VCI. What’s the difference between Smartlink C V4 and Smartlink C V2?
Check the table comparison below:
| SmartLink C V2 | SmartLink C V4 | |
| CPU | Single-core 528MHz | dual-core 1.7G |
| Working Voltage | DC 9V ~ 36V | DC 8V ~ 36V |
| Screen | 3.95 inches, 320*480 | 5 inches, 1280*720 |
| RAM | 256M | 1G |
| Storage | 8G | 8G |
| Communication | Local Diagnosis: WIFI/BT/USB SmartLink Remote Diagnosis: Wi‑Fi / Wired |
Local Diagnosis: WIFI/BT/USB SmartLink Remote Diagnosis: Wi‑Fi / Wired |
| WIFI | WIFI 5 | WIFI 6 |
| Bluetooth | BT4.2 | BT5.0 |
| I/O | DB15 male, USB-B, RJ45, DC IN | DB15 female, USB-B, RJ45, DC IN |
| Working Temperature | 0℃ ~ 50℃ | 0℃ ~ 50℃ |
| Size | 200*47*110mm | 187.6*32.8*106mm |
| Weight | 0.55kg | 0.35kg |
The Launch Smartlink C V4 VCI comes with upgrades to both its software and hardware.
1. Hardware Performance Upgrade
Connector Performance Leap: The connector’s CPU has been upgraded from a single-core to a dual-core processor, with the clock speed increased to 1.7 GHz. The RAM has been expanded from 256 MB to 1 GB, significantly accelerating computational response speed and enabling more efficient command execution. The CAN bus has been upgraded to 4 channels of CAN FD, delivering comprehensive improvements in communication bandwidth and transmission capacity to support diagnostic requirements for a wider range of newer vehicle models.
2. Diagnostic Functionality Upgrade
Graphical Diagnostic Display: Supports graphical visualization of special functions, topology maps, and data streams. Data trends are intuitively visible, enabling more precise and efficient fault localization and eliminating the need for cumbersome text-only interpretation.
High-Speed Scanning: Utilizes multi-channel synchronous scanning technology to process diagnostic tasks in parallel. Compared to traditional single-channel scanning, this significantly improves efficiency, delivering faster diagnostic speed and reducing repair time.
AI-Powered Fault Remediation: Visually displays fault points and provides targeted, highly feasible optimization solutions.






















