In depth comparison and review of Lenovo ThinkPad Z13 Gen 1 (21D2) 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 ThinkPad Z13 Gen 1 (21D2) based on its technical characteristics, features, user experience, expert reviews and price level.
excellent build quality
powerful AMD processor
high-resolution display
sustainable materials used
compact and lightweight
higher price point
no HDMI port
limited upgradeability
average battery life
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 ThinkPad Z13 Gen 1 (21D2) | Lenovo V155-15API (81V5) |
|---|
| Product Type | Notebook | Notebook |
|---|---|---|
| Dimensions (WxDxH) | 29.94 cm x 19.96 cm x 1.399 cm | 36.3 cm x 25.4 cm x 2.29 cm |
| Weight | 1.19 kg | 2.2 kg |
| Case Material | Aluminium (top), aluminium (bottom) | Polycarbonate ABS |
| Colour | Black (bottom), arctic grey (top) | Iron grey |
| DISPLAY | Lenovo ThinkPad Z13 Gen 1 (21D2) | Lenovo V155-15API (81V5) |
|---|
| Screen Size (Type) | 13.3" - IPS | 15.6" - TN |
|---|---|---|
| LCD Backlight Technology | LED backlight | LED backlight |
| Screen Resolution | 1920 x 1200 (WUXGA) | 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 | Anti-glare, 178° viewing angle, Low Power, 91.6% screen-to-body ratio | Anti-glare |
| PROCESSOR | Lenovo ThinkPad Z13 Gen 1 (21D2) | Lenovo V155-15API (81V5) |
|---|
| CPU | AMD Ryzen 5 Pro 6650U / 2.9 GHz | AMD Ryzen 5 3500U / 2.1 GHz |
|---|---|---|
| Max Turbo Speed | 4.5 GHz | 3.7 GHz |
| Number of Cores | 6-core | Quad-Core |
| Cache | 16 MB | L3 - 4 MB |
| 64-bit Computing | - | Yes |
| Features | - | Integrated memory controller |
| MEMORY | Lenovo ThinkPad Z13 Gen 1 (21D2) | Lenovo V155-15API (81V5) |
|---|
| RAM | 16 GB (provided memory is soldered) | 8 GB (1 x 4 GB + 4 GB (soldered)) |
|---|---|---|
| Max RAM Supported | - | 16 GB |
| RAM Type | LPDDR5 SDRAM | DDR4 SDRAM |
| Speed | 6400 MHz | 2400 MHz |
| Rated Speed | 6400 MHz | 2400 MHz |
| Form Factor | - | SO-DIMM 260-pin |
| Slots Qty | - | 1 |
| Empty Slots | - | 0 |
| STORAGE | Lenovo ThinkPad Z13 Gen 1 (21D2) | Lenovo V155-15API (81V5) |
|---|
| Main Storage Size (HDD/SSD) | 256 GB SSD M.2 2242 PCIe 4.0 x4 - TCG Opal Encryption 2, NVM Express (NVMe) | 256 GB SSD M.2 2242 PCIe - NVM Express (NVMe) |
|---|---|---|
| Optical Drive | - | DVD-Writer - tray |
| AUDIO & VIDEO | Lenovo ThinkPad Z13 Gen 1 (21D2) | Lenovo V155-15API (81V5) |
|---|
| Graphics Processor (GPU) | AMD Radeon 660M | AMD Radeon Vega 8 |
|---|---|---|
| Max Monitors Supported | 2 external monitor(s) | - |
| Camera | Yes - 1080p | Yes - 720p |
| Camera Features | IR camera, Windows Hello, e-camera shutter | 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 |
| COMMUNICATIONS | Lenovo ThinkPad Z13 Gen 1 (21D2) | Lenovo V155-15API (81V5) |
|---|
| Wireless | 802.11a/b/g/n/ac/ax, Bluetooth 5.2 | 802.11a/b/g/n/ac, Bluetooth 4.1 |
|---|---|---|
| Wireless Controller | Qualcomm NFA725A | M.2 Card |
| Network Interface | - | Gigabit Ethernet |
| Compliant Standards | DASH | - |
| Features | Dual stream (2x2) | - |
| BATTERY | Lenovo ThinkPad Z13 Gen 1 (21D2) | Lenovo V155-15API (81V5) |
|---|
| Technology | Lithium polymer | Lithium Ion |
|---|---|---|
| Battery Capacity (Size) | 51.5 Wh | 36 Wh |
| Battery Life | Up to 22.8 hours | Up to 5 hours |
| AC ADAPTER | Lenovo ThinkPad Z13 Gen 1 (21D2) | Lenovo V155-15API (81V5) |
|---|
| Input | AC 100-240 V (50/60 Hz) | AC 120/230 V (50/60 Hz) |
|---|---|---|
| Output | 65 Watt | 65 Watt |
| INPUT | Lenovo ThinkPad Z13 Gen 1 (21D2) | Lenovo V155-15API (81V5) |
|---|
| Type | Keyboard, TrackPoint, UltraNav | Keyboard, touchpad |
|---|---|---|
| Numeric Keypad | - | Yes |
| Keyboard Backlight | Yes | - |
| Features | Spill-resistant, multi-touch touchpad, haptic feedback, Fn keys with Unified Communications controls, glass touchpad | Multi-touch touchpad |
| CONNECTIONS & EXPANSIONS | Lenovo ThinkPad Z13 Gen 1 (21D2) | Lenovo V155-15API (81V5) |
|---|
| Interfaces | 2 x USB4 (supports DisplayPort 1.4a Alt Mode) (Power Delivery 3.0) Headphone/microphone combo jack |
2 x USB 3.1 Gen 1 LAN HDMI Headphone/microphone combo jack |
|---|
| SOFTWARE | Lenovo ThinkPad Z13 Gen 1 (21D2) | Lenovo V155-15API (81V5) |
|---|
| Operating System (OS) | Windows 11 Pro - English | Windows 10 Pro 64-bit Edition - Dutch / English / French / German / Italian |
|---|---|---|
| Software Included | Glance by Mirametrix | - |
| MISCELLANEOUS | Lenovo ThinkPad Z13 Gen 1 (21D2) | Lenovo V155-15API (81V5) |
|---|
| Included Accessories | USB-C power adapter | Power adapter |
|---|---|---|
| Security | Discrete Trusted Platform Module (TPM 2.0) Security Chip with Microsoft Pluton, 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, power-on password, RapidCharge, MIL-STD-810H tested, self-healing BIOS, NVMe password, USB FIDO (Fast Identity Online) device integration, pen upgradable, certificate based BIOS authentication | Administrator password, hard drive password, power-on password, RapidCharge |
| Compliant Standards | RoHS, TUV Rheinland Low Blue Light Certification, Energy-Related Products (ErP) Lot 3, TCG Certified | RoHS |
| ENERGY STAR Certified | Yes | Yes |
| EPEAT Compliant | EPEAT Gold | - |
| Max Operating Temperature | 35 °C | - |
| Min Operating Temperature | 5 °C | - |
| Humidity Range Operating | 8 - 95% | - |
| Manufacturer Warranty | Base warranty - 3 years - pick-up and return Extended warranty - 3 years - on-site - response time: next business day |
Limited warranty - 1 year - pick-up and return |
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