Side by side comparison and review of Lenovo IdeaPad S145-15AST (Lenovo IdeaPad S145) and Lenovo ThinkPad X1 Nano Gen 2 (21E9). Compare dimensions, processors, batteries, storage capacities and other key specifications and features to simplify the choice of your perfect laptop. Our goal is to make it easier for you to decide on the laptop that will best meet your expectations by revealing the main differences between the products.
Advantages and disadvantages of Lenovo IdeaPad S145-15AST (Lenovo IdeaPad S145) based on its technical characteristics, features, user experience, expert reviews and price level.
affordable price
lightweight design
adequate connectivity options
solid build quality
simple user interface
mediocre battery life
average display quality
limited graphics performance
slower HDD storage
Advantages and disadvantages of Lenovo ThinkPad X1 Nano Gen 2 (21E9) based on its technical characteristics, features, user experience, expert reviews and price level.
ultra-lightweight design
impressive battery life
robust security features
sharp display quality
powerful intel processor
limited port selection
higher price point
no touchscreen option
average speaker quality
| DESIGN AND DIMENSIONS | Lenovo IdeaPad S145-15AST (Lenovo IdeaPad S145) | Lenovo ThinkPad X1 Nano Gen 2 (21E9) |
|---|
| Product Type | Notebook | Notebook - 180-degree hinge design |
|---|---|---|
| Dimensions (WxDxH) | 36.22 cm x 25.15 cm x 1.99 cm | 29.33 cm x 20.81 cm x 1.48 cm |
| Weight | 1.85 kg | 991.5 g |
| Case Material | Polycarbonate ABS | Carbon fibre (top), magnesium alloy (bottom) |
| Colour | Granite black IMR | Black weave |
| DISPLAY | Lenovo IdeaPad S145-15AST (Lenovo IdeaPad S145) | Lenovo ThinkPad X1 Nano Gen 2 (21E9) |
|---|
| Screen Size (Type) | 15.6" - TN | 13" - IPS |
|---|---|---|
| Touchscreen | - | Yes (10-point multi-touch) |
| LCD Backlight Technology | LED backlight | LED backlight |
| Screen Resolution | 1366 x 768 (HD) | 2160 x 1350 (2K) |
| Widescreen | Yes | Yes |
| Image Aspect Ratio | 16:9 | 16:10 |
| Image Brightness | 220 cd/m² | 450 cd/m² |
| Colour Gamut | - | 100% sRGB |
| Features | Anti-glare | Anti-glare, anti-reflective, anti-smudge, 170° viewing angle, Low Power, Add-on Film Touch |
| PROCESSOR | Lenovo IdeaPad S145-15AST (Lenovo IdeaPad S145) | Lenovo ThinkPad X1 Nano Gen 2 (21E9) |
|---|
| CPU | AMD A9 9425 / 3.1 GHz | Intel Core i7 (12th Gen) 1270P / 2.2 GHz |
|---|---|---|
| Max Turbo Speed | 3.7 GHz | 4.8 GHz |
| Number of Cores | Dual-Core | 12-core |
| Cache | 1 MB | 18 MB |
| 64-bit Computing | Yes | - |
| Features | Integrated memory controller | Integrated memory controller |
| MEMORY | Lenovo IdeaPad S145-15AST (Lenovo IdeaPad S145) | Lenovo ThinkPad X1 Nano Gen 2 (21E9) |
|---|
| RAM | 4 GB (1 x 4 GB) | 16 GB (provided memory is soldered) |
|---|---|---|
| Max RAM Supported | 8 GB | - |
| RAM Type | DDR4 SDRAM | LPDDR5 SDRAM |
| Speed | 2133 MHz | 5200 MHz |
| Rated Speed | 2133 MHz | 6400 MHz |
| Form Factor | SO-DIMM 260-pin | - |
| Slots Qty | 1 | - |
| Empty Slots | 0 | - |
| STORAGE | Lenovo IdeaPad S145-15AST (Lenovo IdeaPad S145) | Lenovo ThinkPad X1 Nano Gen 2 (21E9) |
|---|
| Main Storage Size (HDD/SSD) | 128 GB SSD 2.5" (7 mm) SATA 6Gb/s | 256 GB SSD M.2 2242 PCIe 4.0 x4 - TCG Opal Encryption - Kioxia |
|---|
| AUDIO & VIDEO | Lenovo IdeaPad S145-15AST (Lenovo IdeaPad S145) | Lenovo ThinkPad X1 Nano Gen 2 (21E9) |
|---|
| Graphics Processor (GPU) | AMD Radeon R5 | Intel Iris Xe Graphics |
|---|---|---|
| Max Monitors Supported | - | 2 external monitor(s) |
| Camera | Yes | Yes - 1080p |
| Resolution | 0.3 Megapixel | - |
| Camera Features | - | Privacy shutter, Windows Hello, fixed focus, hybrid FHD/IR camera |
| Sound | Stereo speakers, microphone | Stereo speakers, two tweeters, two woofers, four microphones |
| Codec | - | Realtek ALC3306 |
| Compliant Standards | High Definition Audio, Dolby Audio | High Definition Audio, Dolby Atmos, Dolby Voice |
| COMMUNICATIONS | Lenovo IdeaPad S145-15AST (Lenovo IdeaPad S145) | Lenovo ThinkPad X1 Nano Gen 2 (21E9) |
|---|
| Wireless | 802.11a/b/g/n/ac, Bluetooth 4.2 | Bluetooth 5.1, 802.11a/b/g/n/ac/ax (Wi-Fi 6E) |
|---|---|---|
| Wireless Controller | M.2 Card | Intel Wi-Fi 6E AX 211 |
| Network Interface | - | Gigabit Ethernet |
| Features | Single stream (1x1) | - |
| BATTERY | Lenovo IdeaPad S145-15AST (Lenovo IdeaPad S145) | Lenovo ThinkPad X1 Nano Gen 2 (21E9) |
|---|
| Technology | Lithium Ion | 3-cell lithium polymer |
|---|---|---|
| Battery Capacity (Size) | 30 Wh | 49.5 Wh |
| Battery Life | Up to 4 hours | - |
| AC ADAPTER | Lenovo IdeaPad S145-15AST (Lenovo IdeaPad S145) | Lenovo ThinkPad X1 Nano Gen 2 (21E9) |
|---|
| Input | AC 120/230 V (50/60 Hz) | AC 100-240 V (50/60 Hz) |
|---|---|---|
| Output | 45 Watt | 65 Watt |
| INPUT | Lenovo IdeaPad S145-15AST (Lenovo IdeaPad S145) | Lenovo ThinkPad X1 Nano Gen 2 (21E9) |
|---|
| Type | Keyboard, touchpad | Keyboard, TrackPoint, UltraNav |
|---|---|---|
| Numeric Keypad | Yes | - |
| Keyboard Backlight | - | Yes |
| Features | Multi-touch touchpad, buttonless touchpad | Spill-resistant, multi-touch touchpad, Fn keys with Unified Communications controls, glass touchpad |
| CONNECTIONS & EXPANSIONS | Lenovo IdeaPad S145-15AST (Lenovo IdeaPad S145) | Lenovo ThinkPad X1 Nano Gen 2 (21E9) |
|---|
| Interfaces | USB 2.0 2 x USB 3.1 Gen 1 HDMI Headphone/microphone combo jack |
2 x USB4 (supports Thunderbolt 4, DisplayPort 1.4 Alt Mode) (Power Delivery 3.0) LAN (on supplied adapter) Headphone/microphone combo jack |
|---|---|---|
| Memory Card Reader | 4 in 1 (SD Card, MultiMediaCard, SDHC Card, SDXC Card) | - |
| SOFTWARE | Lenovo IdeaPad S145-15AST (Lenovo IdeaPad S145) | Lenovo ThinkPad X1 Nano Gen 2 (21E9) |
|---|
| Operating System (OS) | Windows 10 Home in S mode - English | Windows 10 Pro 64-bit Edition (available through downgrade rights from Windows 11 Pro) + Windows 11 Pro Licence |
|---|---|---|
| Software Included | Microsoft Office (Trial) | - |
| MISCELLANEOUS | Lenovo IdeaPad S145-15AST (Lenovo IdeaPad S145) | Lenovo ThinkPad X1 Nano Gen 2 (21E9) |
|---|
| Included Accessories | Power adapter | Lenovo USB-C to Ethernet Adapter, USB-C slim power adapter |
|---|---|---|
| Security | Firmware Trusted Platform Module (TPM 2.0) Security Chip | Discrete Trusted Platform Module (TPM 2.0) Security Chip, fingerprint reader |
| Features | Administrator password, hard drive password, power-on password | Administrator password, power-on password, RapidCharge, MIL-STD-810H tested, NVMe password, USB FIDO (Fast Identity Online) device integration, Firmware Resiliency 3.0, certificate based BIOS authentication |
| Compliant Standards | RoHS, Energy-Related Products (ErP) Lot 3 | RoHS, TCG Certified |
| ENERGY STAR Certified | Yes | - |
| Max Operating Temperature | - | 35 °C |
| Min Operating Temperature | - | 5 °C |
| Humidity Range Operating | - | 8 - 95% |
| Manufacturer Warranty | Limited warranty - 1 year - pick-up and return | - |
| Model Number | 15AST 81N3 | - |
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