In depth comparison and review of Lenovo ThinkBook 13x G2 IAP (21AT) and Lenovo V155-15API (81V5). Compare sizes, performance, storage capacities, batteries and other important specifications and features to easily choose the right laptop for you. Our goal is to help you uncover differences between the products and find the laptop that will best fit your needs.
Advantages and disadvantages of Lenovo ThinkBook 13x G2 IAP (21AT) based on its technical characteristics, features, user experience, expert reviews and price level.
lightweight and portable
sharp display resolution
fast SSD storage
good battery life
efficient thermal management
limited port selection
higher price point
no dedicated GPU
average speaker quality
Advantages and disadvantages of Lenovo V155-15API (81V5) based on its technical characteristics, features, user experience, expert reviews and price level.
affordable price
decent processor performance
ample storage capacity
full hd display
numerical keypad included
average battery life
heavier design
no backlit keyboard
limited port selection
DESIGN AND DIMENSIONS | Lenovo ThinkBook 13x G2 IAP (21AT) | Lenovo V155-15API (81V5) |
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Product Type | Notebook - 180-degree hinge design | Notebook |
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Dimensions (WxDxH) | 29.6 cm x 20.9 cm x 1.29 cm | 36.3 cm x 25.4 cm x 2.29 cm |
Weight | 1.2 kg | 2.2 kg |
Case Material | Aluminium (top), aluminium (bottom), glass (display cover) | Polycarbonate ABS |
Colour | Dual tone storm grey | Iron grey |
DISPLAY | Lenovo ThinkBook 13x G2 IAP (21AT) | Lenovo V155-15API (81V5) |
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Screen Size (Type) | 13.3" - IPS | 15.6" - TN |
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LCD Backlight Technology | LED backlight | LED backlight |
Screen Resolution | 2560 x 1600 (WQXGA) | 1920 x 1080 (Full HD) |
Widescreen | Yes | Yes |
Image Aspect Ratio | 16:10 | 16:9 |
Image Brightness | 400 cd/m² | 220 cd/m² |
Colour Gamut | 100% sRGB | - |
Features | Glossy, Corning Gorilla glass, anti-fingerprint, 170° viewing angle, Low Power, Dolby Vision, Smart sense panel | Anti-glare |
PROCESSOR | Lenovo ThinkBook 13x G2 IAP (21AT) | Lenovo V155-15API (81V5) |
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CPU | Intel Core i7 (12th Gen) 1255U / 1.7 GHz | AMD Ryzen 5 3500U / 2.1 GHz |
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Max Turbo Speed | 4.7 GHz | 3.7 GHz |
Number of Cores | 10-core | Quad-Core |
Cache | 12 MB | L3 - 4 MB |
64-bit Computing | - | Yes |
Platform Technology | Intel Evo | - |
Features | Integrated memory controller | Integrated memory controller |
MEMORY | Lenovo ThinkBook 13x G2 IAP (21AT) | Lenovo V155-15API (81V5) |
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RAM | 16 GB (provided memory is soldered) | 8 GB (1 x 4 GB + 4 GB (soldered)) |
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Max RAM Supported | - | 16 GB |
RAM Type | LPDDR5 SDRAM | DDR4 SDRAM |
Speed | 4800 MHz | 2400 MHz |
Rated Speed | 4800 MHz | 2400 MHz |
Form Factor | - | SO-DIMM 260-pin |
Slots Qty | - | 1 |
Empty Slots | - | 0 |
STORAGE | Lenovo ThinkBook 13x G2 IAP (21AT) | Lenovo V155-15API (81V5) |
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Main Storage Size (HDD/SSD) | 512 GB SSD M.2 2242 PCIe 4.0 x4 - NVM Express (NVMe) | 256 GB SSD M.2 2242 PCIe - NVM Express (NVMe) |
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Optical Drive | - | DVD-Writer - tray |
AUDIO & VIDEO | Lenovo ThinkBook 13x G2 IAP (21AT) | Lenovo V155-15API (81V5) |
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Graphics Processor (GPU) | Intel Iris Xe Graphics | AMD Radeon Vega 8 |
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Max Monitors Supported | 2 external monitor(s) | - |
Video System Features | Functions as Intel UHD graphics (for single-channel memory) | - |
Camera | Yes - 720p | Yes - 720p |
Camera Features | Privacy shutter, IR camera, Windows Hello, fixed focus, ToF sensor | Privacy shutter |
Sound | Stereo speakers, dual array microphone | Stereo speakers, microphone |
Codec | Realtek ALC3306 | - |
Compliant Standards | High Definition Audio, Dolby Atmos | High Definition Audio, Dolby Audio |
Audio Features | Harman/kardon stereo speakers, Smart Amp, AI noise cancelling | - |
COMMUNICATIONS | Lenovo ThinkBook 13x G2 IAP (21AT) | Lenovo V155-15API (81V5) |
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Wireless | Bluetooth 5.1, 802.11a/b/g/n/ac/ax (Wi-Fi 6E) | 802.11a/b/g/n/ac, Bluetooth 4.1 |
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Wireless Controller | - | M.2 Card |
Network Interface | Gigabit Ethernet | Gigabit Ethernet |
Features | Dual stream (2x2) | - |
BATTERY | Lenovo ThinkBook 13x G2 IAP (21AT) | Lenovo V155-15API (81V5) |
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Technology | Lithium polymer | Lithium Ion |
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Battery Capacity (Size) | 56 Wh | 36 Wh |
Battery Life | Up to 11.4 hours | Up to 5 hours |
AC ADAPTER | Lenovo ThinkBook 13x G2 IAP (21AT) | Lenovo V155-15API (81V5) |
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Input | AC 100-240 V (50/60 Hz) | AC 120/230 V (50/60 Hz) |
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Output | 65 Watt | 65 Watt |
INPUT | Lenovo ThinkBook 13x G2 IAP (21AT) | Lenovo V155-15API (81V5) |
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Type | Keyboard, touchpad | Keyboard, touchpad |
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Numeric Keypad | - | Yes |
Keyboard Backlight | Yes | - |
Features | Spill-resistant, multi-touch touchpad, buttonless touchpad, precision glass touchpad, smart sense keyboard backlight | Multi-touch touchpad |
CONNECTIONS & EXPANSIONS | Lenovo ThinkBook 13x G2 IAP (21AT) | Lenovo V155-15API (81V5) |
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Interfaces | 2 x USB4 (supports Thunderbolt 4, DisplayPort 1.4 Alt Mode) (Power Delivery 3.0) Headphone/microphone combo jack HDMI (on supplied adapter) VGA (on supplied adapter) LAN (on supplied adapter) USB 3.0 (on supplied adapter) |
2 x USB 3.1 Gen 1 LAN HDMI Headphone/microphone combo jack |
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SOFTWARE | Lenovo ThinkBook 13x G2 IAP (21AT) | Lenovo V155-15API (81V5) |
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Operating System (OS) | Windows 11 Pro - English | Windows 10 Pro 64-bit Edition - Dutch / English / French / German / Italian |
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Software Included | Microsoft Office (Trial) | - |
MISCELLANEOUS | Lenovo ThinkBook 13x G2 IAP (21AT) | Lenovo V155-15API (81V5) |
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Included Accessories | USB-C slim power adapter | Power adapter |
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Bundled with | ThinkBook USB-C Micro Hub | - |
Integrated Options | Ambient light sensor | - |
Security | Discrete Trusted Platform Module (TPM 2.0) Security Chip, fingerprint reader | Firmware Trusted Platform Module (TPM 2.0) Security Chip |
Security Slot Type | - | Kensington security slot |
Theft/Intrusion Protection | - | Security lock slot (cable lock sold separately) |
Features | Administrator password, hard drive password, power-on password, MIL-STD-810H tested, Rapid Charge Pro, self-healing BIOS | Administrator password, hard drive password, power-on password, RapidCharge |
Compliant Standards | RoHS, FSC, Energy-Related Products (ErP) Lot 3, TCG Certified, TUV Rheinland Eyesafe Display, TUV Rheinland Low Blue Light (Hardware Solution) | RoHS |
ENERGY STAR Certified | Yes | Yes |
EPEAT Compliant | EPEAT Silver | - |
Max Operating Temperature | 35 °C | - |
Min Operating Temperature | 5 °C | - |
Humidity Range Operating | 8 - 95% | - |
Manufacturer Warranty | Base warranty - 1 year - pick-up and return Extended warranty - 1 year - on-site |
Limited warranty - 1 year - pick-up and return |