In depth comparison and review of Lenovo ThinkPad E15 Gen 2 (20T8) and Lenovo IdeaPad S145-14AST (Lenovo IdeaPad S145). 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 E15 Gen 2 (20T8) based on its technical characteristics, features, user experience, expert reviews and price level.
robust build quality
solid cpu performance
good keyboard feel
adequate port selection
competitive pricing
average display quality
modest battery life
no thunderbolt support
heavier design
Advantages and disadvantages of Lenovo IdeaPad S145-14AST (Lenovo IdeaPad S145) based on its technical characteristics, features, user experience, expert reviews and price level.
affordable price
lightweight design
decent processor speed
sufficient connectivity options
quiet operation
average display quality
limited storage capacity
basic graphics performance
short battery life
| DESIGN AND DIMENSIONS | Lenovo ThinkPad E15 Gen 2 (20T8) | Lenovo IdeaPad S145-14AST (Lenovo IdeaPad S145) |
|---|
| Product Type | Notebook | Notebook |
|---|---|---|
| Dimensions (WxDxH) | 36.5 cm x 24 cm x 1.89 cm | 32.71 cm x 24.1 cm x 1.99 cm |
| Weight | 1.7 kg | 1.6 kg |
| Case Material | Aluminum, polycarbonate ABS | Polycarbonate ABS |
| Colour | Black | Platinum grey |
| DISPLAY | Lenovo ThinkPad E15 Gen 2 (20T8) | Lenovo IdeaPad S145-14AST (Lenovo IdeaPad S145) |
|---|
| Screen Size (Type) | 15.6" - IPS | 14" - TN |
|---|---|---|
| LCD Backlight Technology | LED backlight | LED backlight |
| Screen Resolution | 1920 x 1080 (Full HD) | 1366 x 768 (HD) |
| Widescreen | Yes | Yes |
| Image Aspect Ratio | 16:9 | 16:9 |
| Image Brightness | 250 cd/m² | 220 cd/m² |
| Features | Anti-glare, 170° viewing angle | Anti-glare |
| PROCESSOR | Lenovo ThinkPad E15 Gen 2 (20T8) | Lenovo IdeaPad S145-14AST (Lenovo IdeaPad S145) |
|---|
| CPU | AMD Ryzen 5 4500U / 2.3 GHz | AMD A4 9125 / 2.3 GHz |
|---|---|---|
| Max Turbo Speed | 4 GHz | 2.6 GHz |
| Number of Cores | 6-core | Dual-Core |
| Cache | L3 - 8 MB | L2 - 1 MB |
| 64-bit Computing | Yes | Yes |
| Features | Integrated memory controller | Integrated memory controller |
| MEMORY | Lenovo ThinkPad E15 Gen 2 (20T8) | Lenovo IdeaPad S145-14AST (Lenovo IdeaPad S145) |
|---|
| RAM | 8 GB (provided memory is soldered) | 4 GB (1 x 4 GB) |
|---|---|---|
| Max RAM Supported | 24 GB | 8 GB |
| RAM Type | DDR4 SDRAM | DDR4 SDRAM |
| Speed | 3200 MHz | 2133 MHz |
| Rated Speed | 3200 MHz | 2133 MHz |
| Form Factor | SO-DIMM 260-pin | SO-DIMM 260-pin |
| Slots Qty | 1 | 1 |
| Empty Slots | 1 | 0 |
| STORAGE | Lenovo ThinkPad E15 Gen 2 (20T8) | Lenovo IdeaPad S145-14AST (Lenovo IdeaPad S145) |
|---|
| Main Storage Size (HDD/SSD) | 256 GB SSD M.2 2242 PCIe 3.0 x4 - NVM Express (NVMe) | 128 GB SSD 2.5" SATA 6Gb/s |
|---|
| AUDIO & VIDEO | Lenovo ThinkPad E15 Gen 2 (20T8) | Lenovo IdeaPad S145-14AST (Lenovo IdeaPad S145) |
|---|
| Graphics Processor (GPU) | AMD Radeon Graphics | AMD Radeon R3 |
|---|---|---|
| Memory Allocation Technology | Shared Video Memory (UMA) | - |
| Max Monitors Supported | 2 external monitor(s) | - |
| Camera | Yes - 720p | Yes |
| Resolution | - | 0.3 Megapixel |
| Camera Features | IR camera, fixed focus, ThinkShutter camera privacy | - |
| Sound | Stereo speakers, dual array microphone | Stereo speakers, microphone |
| Codec | Realtek ALC3287 | - |
| Compliant Standards | High Definition Audio, Dolby Audio | High Definition Audio, Dolby Audio |
| Audio Features | Harman/kardon stereo speakers | - |
| COMMUNICATIONS | Lenovo ThinkPad E15 Gen 2 (20T8) | Lenovo IdeaPad S145-14AST (Lenovo IdeaPad S145) |
|---|
| Wireless | 802.11a/b/g/n/ac, Bluetooth 5.0 | 802.11a/b/g/n/ac, Bluetooth 4.2 |
|---|---|---|
| Wireless Controller | Realtek RTL8822CE - M.2 Card | M.2 Card |
| Network Interface | Gigabit Ethernet | - |
| Ethernet Controller | Realtek RTL8111GUS | - |
| Features | Dual stream (2x2) | - |
| BATTERY | Lenovo ThinkPad E15 Gen 2 (20T8) | Lenovo IdeaPad S145-14AST (Lenovo IdeaPad S145) |
|---|
| Technology | Lithium polymer | Lithium Ion |
|---|---|---|
| Battery Capacity (Size) | 45 Wh | 30 Wh |
| Battery Life | Up to 12.7 hours | Up to 4 hours |
| AC ADAPTER | Lenovo ThinkPad E15 Gen 2 (20T8) | Lenovo IdeaPad S145-14AST (Lenovo IdeaPad S145) |
|---|
| Input | AC 100-240 V (50/60 Hz) | AC 120/230 V (50/60 Hz) |
|---|---|---|
| Output | 65 Watt | 45 Watt |
| INPUT | Lenovo ThinkPad E15 Gen 2 (20T8) | Lenovo IdeaPad S145-14AST (Lenovo IdeaPad S145) |
|---|
| Type | Keyboard, TrackPoint, UltraNav | Keyboard, touchpad |
|---|---|---|
| Numeric Keypad | Yes | - |
| Keyboard Backlight | Yes | - |
| Features | Spill-resistant, multi-touch touchpad, buttonless touchpad, Fn keys with Unified Communications controls | Multi-touch touchpad, buttonless touchpad |
| CONNECTIONS & EXPANSIONS | Lenovo ThinkPad E15 Gen 2 (20T8) | Lenovo IdeaPad S145-14AST (Lenovo IdeaPad S145) |
|---|
| Interfaces | USB 3.2 Gen 1 (Always On) USB 2.0 USB-C 3.2 Gen 1 (supports DisplayPort Alt Mode) (Power Delivery) HDMI LAN 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 E15 Gen 2 (20T8) | Lenovo IdeaPad S145-14AST (Lenovo IdeaPad S145) |
|---|
| Operating System (OS) | Windows 10 Pro 64-bit Edition - English | Windows 10 Home in S mode - English |
|---|---|---|
| Software Included | - | Microsoft Office (30 days trial) |
| MISCELLANEOUS | Lenovo ThinkPad E15 Gen 2 (20T8) | Lenovo IdeaPad S145-14AST (Lenovo IdeaPad S145) |
|---|
| Included Accessories | USB-C power adapter | Power adapter |
|---|---|---|
| Security | 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, RapidCharge, MIL-STD-810G tested | Administrator password, hard drive password, power-on password |
| Compliant Standards | RoHS, Energy-Related Products (ErP) Lot 3 | RoHS, Energy-Related Products (ErP) Lot 3 |
| SAR Value | 0.438 W/kg (body), 0.438 W/kg (limb) | - |
| ENERGY STAR Certified | Yes | Yes |
| EPEAT Compliant | EPEAT Gold | - |
| TCO Certified | TCO Certified Notebooks 8 | - |
| 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 | Limited warranty - 1 year - pick-up and return |
| Model Number | - | 14AST 81ST |
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