Between Keydiy kd-x4 and CGDI A2, which one is better?
Here comes a table comparison.
| Device | CGDI A2
| Keydiy KD-X4
|
| Operation | Tablet, Standalone | Based on App or PC software |
| Primary Focus | IMMO matching, key programming for specific brands; frequency detection | Universal key/remote recognition, remote generation, copying, simulation, key programming |
| Connection | WiFi, USB | Bluetooth/OTG to mobile/tablet (KD App); USB to PC; USB |
| Language | English, Chinese | App supports Multilanguage, 19 languages |
| Subscriptions | No Annual Subscription. Optional Mercedes FBS3 license; free daily tokens for some functions | No annual subscription. Points/tokens for advanced functions (e.g., BMW add-key: 200 points/$4); app-based license purchases |
| Vehicle brands | Supports password-free and disassembly-free matching for most vehicle models. | 56+ brands |
| Detect frequency | Yes | Yes |
| ID48 96bit cloning | – | Yes, 100 KD coins or 10 USD per calculation |
| BMW Immobilizer | Yes, CAS1-CAS4, FEM/BDC, BDC2 (Not yet support BDC3) | Yes, BMW CAS1-CAS4, FEM/BDC, BDC2, BDC3. FEM/BDC, BDC2 and BDC3 require same license. 5000KD coins or 150USD. |
| Benz Immobilizer | With FBS3 license. Supports EIS, calculate password, Read/write key, Benz ELV, ECU and gateway functions. | – |
| VAG MQB48 & MLB | MQB48 yes, MLB No | Yes, need to activate MQB48 and MLB license. Each MLB add key require 200 KD coins. |
| Audi BCM2 encrypted key programming | – | Yes, 2500KD Coins/75USD to activate license |
| Volvo CEM | Yes | Yes, 3500 KD-Coins/50USD to activate license |
| Toyota 8A Blade key AKL | Yes | Yes with 8A blade key AKL cable |
| Toyota 8A smart key programming | Yes, Toyota 8A/4A smart key | Yes |
| Jaguar Land rover 2018-2024 Key programming | – | Yes, supports JPLA / K8D2 / J9C3 / M9R3 systems |
| BYD all keys lost | Yes | Yes, 100 KD coins each time |
| Program Toyota second hand key without unlocking | – | Yes, 200 KD coins or 5 USD |
| Generate remote | – | Yes, generate KD remote |
| Remote Unlock | – | Yes |
| Yamaha ID47/ID49 motorcycle key barcode retrieval | Yes | |
| Nissan B18 28-digit pin code | With 40-PIN cable to bypass pin code. | Yes |
| CAN FD protocol | Yes | Yes |
In sum:
CGDI A2 works standalone. KD-X4 requires PC or phone.
CGDI A2 has optional Mercedes Benz FBS3 immobilizer functions. It’s the key feature of CGDI. Keydiy does not do Benz FBS3.
Keydiy KD-X4 has more key tool features (unlock remote, generate KD remote etc).
CGDI A2 does not need annual subscription and most functions are free. While some functions of Keydiy KD-X4 require license activation and single operation cost.
They are different devices; you need both to have more coverage.
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