| Audio Input Type | Dual array microphone |
| Battery Run Time, RAM Size | 8 |
| Brand, Manufacturer | Lenovo |
| Cache Memory / Installed Size, Generation | 12 |
| Capacity, Hard Drive Size | 256 |
| Card Reader / Supported Flash Memory | MultiMediaCard, SDHC Memory Card, SD Memory Card, SDXC Memory Card |
| Color | Dual tone mineral gray |
| Depth | 23.5 |
| Display Size | 15.6 |
| Display Size (cm) | 39.6 |
| Display Type | LED |
| ENERGY STAR Qualified, Environmental Standards / TCO Certified, EPEAT Compliant, Input Device / Backlight, Input Device / Numeric Keypad, Widescreen Display | Yes |
| EPEAT Level | EPEAT Gold |
| Graphics Processor, Video Output / Graphics Processor Series | Intel Iris Xe Graphics |
| Hard Drive / SSD Form Factor | M.2 2242 |
| Hard Drive Features | NVM Express (NVMe) |
| Hard Drive Type | SSD |
| Height | 1.89 |
| Input Device | Touchpad, Keyboard |
| Interfaces / HDMI Ports Qty, Packaged Quantity, RAM / Empty Slots, RAM / Slots Qty | 1 |
| Interfaces / USB 3.0 Ports Qty, Interfaces / USB-C Ports Qty | 2 |
| Interfaces / USB-C Features | USB Power Delivery |
| Keyboard / Keyboard Layout | QWERTY |
| Keyboard Localization | US |
| Language | English |
| Manufacturer Selling Program | TopSeller |
| Mechanical Design | 180? hinge design |
| Model | 21DJ |
| Multi-Core Technology | 10-core |
| Networking / Data Link Protocol | 802.11ax, IEEE 802.11a, IEEE 802.11b, IEEE 802.11ac, IEEE 802.11g, Ethernet, IEEE 802.11n, Fast Ethernet |
| Networking / Data Link Protocol, Networking / Wired Protocol | Gigabit Ethernet |
| Networking / Data Link Protocol, Wireless Protocols | Bluetooth 5.2 |
| Operating System (Family) | Windows 11 |
| Operating System, Operating System (Edition) | Windows 11 Pro |
| Optical Drive | No optical drive, None |
| Platform | Windows |
| Processor Manufacturer | Intel |
| Processor Number | I5-1235U |
| Processor Type | Core i5 |
| Product Color | Gray |
| Product Line | Lenovo ThinkBook 15 G4 IAP |
| RAM / Max Supported Size | 40 |
| RAM Form Factor | SO-DIMM 260-pin |
| RAM Technology | DDR4 SDRAM |
| Region | United States |
| Resolution | 1920 x 1080 |
| Security Devices | Fingerprint reader |
| Service Type | 1-year warranty |
| Software / Type | Microsoft Office (Trial) |
| Speed | 3200 |
| System / Embedded Security | Firmware Trusted Platform Module (TPM 2.0) Security Chip |
| System Type | Notebook |
| Technology | Lithium polymer |
| Weight | 1.7 |
| Width | 35.7 |
| Wireless Protocols | 802.11a/b/g/n/ac/ax |