In depth comparison and review of Lenovo Chromebook C340-15 (Lenovo Chromebook C340) and Lenovo Chromebook S345-14AST (Lenovo Chromebook S345). 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.
| DESIGN AND DIMENSIONS | Lenovo Chromebook C340-15 (Lenovo Chromebook C340) | Lenovo Chromebook S345-14AST (Lenovo Chromebook S345) |
|---|
| Product Type | Chromebook - flip design | Chromebook |
|---|---|---|
| Dimensions (WxDxH) | 36.15 cm x 24.885 cm x 1.895 cm | 32.8 cm x 22.5 cm x 1.77 cm |
| Weight | 1.98 kg | 1.48 kg |
| Case Material | Aluminum, polycarbonate ABS | Aluminum, polycarbonate ABS |
| Colour | Mineral grey | Mineral grey |
| DISPLAY | Lenovo Chromebook C340-15 (Lenovo Chromebook C340) | Lenovo Chromebook S345-14AST (Lenovo Chromebook S345) |
|---|
| Screen Size (Type) | 15.6" - IPS | 14" - TN |
|---|---|---|
| Touchscreen | Yes (10-point multi-touch) | - |
| LCD Backlight Technology | LED backlight | LED backlight |
| Screen Resolution | 1920 x 1080 (Full HD) | 1920 x 1080 (Full HD) |
| Widescreen | Yes | Yes |
| Image Aspect Ratio | 16:9 | 16:9 |
| Image Brightness | 250 cd/m² | 220 cd/m² |
| Features | Anti-glare | Anti-glare |
| PROCESSOR | Lenovo Chromebook C340-15 (Lenovo Chromebook C340) | Lenovo Chromebook S345-14AST (Lenovo Chromebook S345) |
|---|
| CPU | Intel Pentium Gold 4417U / 2.3 GHz | AMD A4 9120C / 1.6 GHz |
|---|---|---|
| Max Turbo Speed | - | 2.4 GHz |
| Number of Cores | Dual-Core | Dual-Core |
| Cache | 2 MB | L2 - 1 MB |
| 64-bit Computing | Yes | Yes |
| Features | Integrated memory controller | Integrated memory controller |
| MEMORY | Lenovo Chromebook C340-15 (Lenovo Chromebook C340) | Lenovo Chromebook S345-14AST (Lenovo Chromebook S345) |
|---|
| RAM | 4 GB (provided memory is soldered) | 4 GB (provided memory is soldered) |
|---|---|---|
| RAM Type | DDR4 SDRAM | DDR4 SDRAM |
| Speed | 2133 MHz | 1666 MHz |
| Rated Speed | 2133 MHz | 1666 MHz |
| STORAGE | Lenovo Chromebook C340-15 (Lenovo Chromebook C340) | Lenovo Chromebook S345-14AST (Lenovo Chromebook S345) |
|---|
| Main Storage Size (HDD/SSD) | 32 GB eMMC - eMMC 5.1 | 32 GB eMMC - eMMC 5.1 |
|---|
| AUDIO & VIDEO | Lenovo Chromebook C340-15 (Lenovo Chromebook C340) | Lenovo Chromebook S345-14AST (Lenovo Chromebook S345) |
|---|
| Graphics Processor (GPU) | Intel HD Graphics 610 | AMD Radeon R4 |
|---|---|---|
| Camera | Yes - 720p | Yes - 720p |
| Resolution | 1 Megapixel | 1 Megapixel |
| Camera Features | Fixed focus | - |
| Sound | Stereo speakers, dual array microphone | Stereo speakers, dual array microphone |
| Codec | - | MAX98357A |
| Compliant Standards | High Definition Audio | High Definition Audio |
| COMMUNICATIONS | Lenovo Chromebook C340-15 (Lenovo Chromebook C340) | Lenovo Chromebook S345-14AST (Lenovo Chromebook S345) |
|---|
| Wireless | 802.11a/b/g/n/ac, Bluetooth 4.2 | 802.11a/b/g/n/ac, Bluetooth 4.1 |
|---|---|---|
| Wireless Controller | Intel Dual Band Wireless-AC 7265 - M.2 Card | Qualcomm QCA6174A - M.2 Card |
| Features | Dual stream (2x2) | Dual stream (2x2) |
| BATTERY | Lenovo Chromebook C340-15 (Lenovo Chromebook C340) | Lenovo Chromebook S345-14AST (Lenovo Chromebook S345) |
|---|
| Technology | Lithium Ion | Lithium Ion |
|---|---|---|
| Battery Capacity (Size) | 56 Wh | 57 Wh |
| Battery Life | Up to 10 hours | Up to 10 hours |
| AC ADAPTER | Lenovo Chromebook C340-15 (Lenovo Chromebook C340) | Lenovo Chromebook S345-14AST (Lenovo Chromebook S345) |
|---|
| Input | AC 120/230 V (50/60 Hz) | AC 120/230 V (50/60 Hz) |
|---|---|---|
| Output | 45 Watt | 45 Watt |
| INPUT | Lenovo Chromebook C340-15 (Lenovo Chromebook C340) | Lenovo Chromebook S345-14AST (Lenovo Chromebook S345) |
|---|
| Type | Keyboard, touchpad | Keyboard, touchpad |
|---|---|---|
| Features | Multi-touch touchpad, buttonless touchpad | Spill-resistant, multi-touch touchpad, buttonless touchpad |
| CONNECTIONS & EXPANSIONS | Lenovo Chromebook C340-15 (Lenovo Chromebook C340) | Lenovo Chromebook S345-14AST (Lenovo Chromebook S345) |
|---|
| Interfaces | USB 3.1 Gen 1 USB-C 3.1 Gen 1 (supports DisplayPort Alt Mode) (DC-In combo, Power Delivery) USB-C 3.1 Gen 1 (supports DisplayPort Alt Mode) (Power Delivery) Headphone/microphone combo jack |
2 x USB 3.1 Gen 1 2 x USB-C 3.1 Gen 1 Headphone/microphone combo jack |
|---|---|---|
| Memory Card Reader | Yes (microSD) | Yes (microSD) |
| SOFTWARE | Lenovo Chromebook C340-15 (Lenovo Chromebook C340) | Lenovo Chromebook S345-14AST (Lenovo Chromebook S345) |
|---|
| Operating System (OS) | Google Chrome OS | Google Chrome OS |
|---|
| MISCELLANEOUS | Lenovo Chromebook C340-15 (Lenovo Chromebook C340) | Lenovo Chromebook S345-14AST (Lenovo Chromebook S345) |
|---|
| Included Accessories | USB-C power adapter | USB-C power adapter |
|---|---|---|
| Security | - | Google Security Chip H1 |
| Security Slot Type | Kensington mini security slot | Kensington security slot |
| Theft/Intrusion Protection | Security lock slot (cable lock sold separately) | Security lock slot (cable lock sold separately) |
| Compliant Standards | RoHS, Energy-Related Products (ErP) Lot 3 | RoHS, Energy-Related Products (ErP) Lot 3 |
| SAR Value | 0.59 W/kg (body), 0.59 W/kg (limb) | 0.38 W/kg (body), 0.38 W/kg (limb) |
| ENERGY STAR Certified | Yes | Yes |
| EPEAT Compliant | - | EPEAT Bronze |
| Manufacturer Warranty | Limited warranty - 1 year - pick-up and return | Limited warranty - 1 year - pick-up and return |
| Model Number | 15 81T9 | 14AST 81WX |
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