In depth comparison and review of Lenovo ThinkPad Z13 Gen 1 (21D2) and Lenovo IdeaPad S145-15IGM (81MX). 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 IdeaPad S145-15IGM (81MX) based on its technical characteristics, features, user experience, expert reviews and price level.
affordable price
lightweight design
solid build quality
decent processor performance
sufficient connectivity options
average display quality
limited storage capacity
no backlit keyboard
mediocre battery life
| DESIGN AND DIMENSIONS | Lenovo ThinkPad Z13 Gen 1 (21D2) | Lenovo IdeaPad S145-15IGM (81MX) |
|---|
| Product Type | Notebook | Notebook |
|---|---|---|
| Dimensions (WxDxH) | 29.94 cm x 19.96 cm x 1.399 cm | 36.22 cm x 25.15 cm x 1.99 cm |
| Weight | 1.19 kg | 1.85 kg |
| Case Material | Aluminium (top), aluminium (bottom) | Polycarbonate ABS |
| Colour | Black (bottom), arctic grey (top) | Granite black IMR |
| DISPLAY | Lenovo ThinkPad Z13 Gen 1 (21D2) | Lenovo IdeaPad S145-15IGM (81MX) |
|---|
| Screen Size (Type) | 13.3" - IPS | 15.6" - TN |
|---|---|---|
| LCD Backlight Technology | LED backlight | LED backlight |
| Screen Resolution | 1920 x 1200 (WUXGA) | 1366 x 768 (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 IdeaPad S145-15IGM (81MX) |
|---|
| CPU | AMD Ryzen 5 Pro 6650U / 2.9 GHz | Intel Pentium Silver N5000 / 1.1 GHz |
|---|---|---|
| Max Turbo Speed | 4.5 GHz | 2.7 GHz |
| Number of Cores | 6-core | Quad-Core |
| Cache | 16 MB | 4 MB |
| 64-bit Computing | - | Yes |
| Features | - | Integrated memory controller |
| MEMORY | Lenovo ThinkPad Z13 Gen 1 (21D2) | Lenovo IdeaPad S145-15IGM (81MX) |
|---|
| RAM | 16 GB (provided memory is soldered) | 4 GB (1 x 4 GB) |
|---|---|---|
| Max RAM Supported | - | 8 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 IdeaPad S145-15IGM (81MX) |
|---|
| Main Storage Size (HDD/SSD) | 256 GB SSD M.2 2242 PCIe 4.0 x4 - TCG Opal Encryption 2, NVM Express (NVMe) | 1 TB HDD SATA 6Gb/s / 5400 rpm |
|---|
| AUDIO & VIDEO | Lenovo ThinkPad Z13 Gen 1 (21D2) | Lenovo IdeaPad S145-15IGM (81MX) |
|---|
| Graphics Processor (GPU) | AMD Radeon 660M | Intel UHD Graphics 605 |
|---|---|---|
| Max Monitors Supported | 2 external monitor(s) | - |
| Camera | Yes - 1080p | Yes |
| Resolution | - | 0.3 Megapixel |
| Camera Features | IR camera, Windows Hello, e-camera 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 IdeaPad S145-15IGM (81MX) |
|---|
| Wireless | 802.11a/b/g/n/ac/ax, Bluetooth 5.2 | 802.11a/b/g/n/ac, Bluetooth 4.2 |
|---|---|---|
| Wireless Controller | Qualcomm NFA725A | M.2 Card |
| Compliant Standards | DASH | - |
| Features | Dual stream (2x2) | Single stream (1x1) |
| BATTERY | Lenovo ThinkPad Z13 Gen 1 (21D2) | Lenovo IdeaPad S145-15IGM (81MX) |
|---|
| Technology | Lithium polymer | Lithium Ion |
|---|---|---|
| Battery Capacity (Size) | 51.5 Wh | 30 Wh |
| Battery Life | Up to 22.8 hours | Up to 5.5 hours |
| AC ADAPTER | Lenovo ThinkPad Z13 Gen 1 (21D2) | Lenovo IdeaPad S145-15IGM (81MX) |
|---|
| Input | AC 100-240 V (50/60 Hz) | AC 120/230 V (50/60 Hz) |
|---|---|---|
| Output | 65 Watt | 45 Watt |
| INPUT | Lenovo ThinkPad Z13 Gen 1 (21D2) | Lenovo IdeaPad S145-15IGM (81MX) |
|---|
| 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, buttonless touchpad |
| CONNECTIONS & EXPANSIONS | Lenovo ThinkPad Z13 Gen 1 (21D2) | Lenovo IdeaPad S145-15IGM (81MX) |
|---|
| Interfaces | 2 x USB4 (supports DisplayPort 1.4a Alt Mode) (Power Delivery 3.0) Headphone/microphone combo jack |
USB 2.0 2 x USB 3.1 Gen 1 HDMI Headphone/microphone combo jack |
|---|---|---|
| Memory Card Reader | - | 4 in 1 (SD Card, MultiMediaCard, SDHC Card, SDXC Card) |
| SOFTWARE | Lenovo ThinkPad Z13 Gen 1 (21D2) | Lenovo IdeaPad S145-15IGM (81MX) |
|---|
| Operating System (OS) | Windows 11 Pro - English | Windows 10 Home in S mode - English |
|---|---|---|
| Software Included | Glance by Mirametrix | Microsoft Office (30 days trial) |
| MISCELLANEOUS | Lenovo ThinkPad Z13 Gen 1 (21D2) | Lenovo IdeaPad S145-15IGM (81MX) |
|---|
| 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 |
| 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 |
| Compliant Standards | RoHS, TUV Rheinland Low Blue Light Certification, Energy-Related Products (ErP) Lot 3, TCG Certified | RoHS, Energy-Related Products (ErP) Lot 3 |
| ENERGY STAR Certified | 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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