In depth comparison and review of Lenovo IdeaPad S145-15AST (Lenovo IdeaPad S145) and Acer TravelMate B3 11 (TMB311). 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 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 Acer TravelMate B3 11 (TMB311) based on its technical characteristics, features, user experience, expert reviews and price level.
durable build quality
affordable price point
efficient battery life
robust security features
lightweight design
mediocre display quality
limited storage capacity
basic graphics performance
slow processor speed
DESIGN AND DIMENSIONS | Lenovo IdeaPad S145-15AST (Lenovo IdeaPad S145) | Acer TravelMate B3 11 (TMB311) |
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Product Type | Notebook | Notebook - 180-degree hinge design |
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Dimensions (WxDxH) | 36.22 cm x 25.15 cm x 1.99 cm | 29.08 cm x 21.145 cm x 2.075 cm |
Weight | 1.85 kg | 1.4 kg |
Case Material | Polycarbonate ABS | - |
Colour | Granite black IMR | Shale black |
DISPLAY | Lenovo IdeaPad S145-15AST (Lenovo IdeaPad S145) | Acer TravelMate B3 11 (TMB311) |
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Screen Size (Type) | 15.6" - TN | 11.6" - IPS |
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LCD Backlight Technology | LED backlight | - |
Screen Resolution | 1366 x 768 (HD) | 1366 x 768 (WXGA) |
V-Sync Rate at Max Res. | - | 60 Hz |
Widescreen | Yes | Yes |
Image Aspect Ratio | 16:9 | - |
Image Brightness | 220 cd/m² | 250 cd/m² |
Colour Gamut | - | 50% NTSC |
Features | Anti-glare | Anti-glare, matte, ComfyView, Acer BluelightShield technology, 25 ms response rate |
PROCESSOR | Lenovo IdeaPad S145-15AST (Lenovo IdeaPad S145) | Acer TravelMate B3 11 (TMB311) |
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CPU | AMD A9 9425 / 3.1 GHz | Intel N-series N200 |
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Max Turbo Speed | 3.7 GHz | 3.7 GHz |
Number of Cores | Dual-Core | Quad-Core |
Cache | 1 MB | L3 - 6 MB |
64-bit Computing | Yes | - |
Features | Integrated memory controller | Intel Smart Cache |
MEMORY | Lenovo IdeaPad S145-15AST (Lenovo IdeaPad S145) | Acer TravelMate B3 11 (TMB311) |
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RAM | 4 GB (1 x 4 GB) | 8 GB (provided memory is soldered) |
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Max RAM Supported | 8 GB | - |
RAM Type | DDR4 SDRAM | LPDDR5 SDRAM |
Speed | 2133 MHz | - |
Rated Speed | 2133 MHz | - |
Form Factor | SO-DIMM 260-pin | - |
Slots Qty | 1 | - |
Empty Slots | 0 | - |
STORAGE | Lenovo IdeaPad S145-15AST (Lenovo IdeaPad S145) | Acer TravelMate B3 11 (TMB311) |
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Main Storage Size (HDD/SSD) | 128 GB SSD 2.5" (7 mm) SATA 6Gb/s | 128 GB SSD - Kingston |
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AUDIO & VIDEO | Lenovo IdeaPad S145-15AST (Lenovo IdeaPad S145) | Acer TravelMate B3 11 (TMB311) |
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Graphics Processor (GPU) | AMD Radeon R5 | Intel UHD Graphics |
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Camera | Yes | Yes - HD |
Resolution | 0.3 Megapixel | - |
Camera Features | - | Privacy shutter, Temporal Noise Reduction |
Sound | Stereo speakers, microphone | Stereo speakers, two microphones |
Compliant Standards | High Definition Audio, Dolby Audio | - |
COMMUNICATIONS | Lenovo IdeaPad S145-15AST (Lenovo IdeaPad S145) | Acer TravelMate B3 11 (TMB311) |
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Wireless | 802.11a/b/g/n/ac, Bluetooth 4.2 | Bluetooth 5.2, 802.11a/b/g/n/ac/ax (Wi-Fi 6E) |
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Wireless Controller | M.2 Card | Intel Wi-Fi 6E AX 211 - M.2 2230 (CNVi) |
Features | Single stream (1x1) | Dual stream (2x2), MU-MIMO |
BATTERY | Lenovo IdeaPad S145-15AST (Lenovo IdeaPad S145) | Acer TravelMate B3 11 (TMB311) |
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Technology | Lithium Ion | - |
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Battery Capacity (Size) | 30 Wh | 50 Wh |
Battery Life | Up to 4 hours | - |
AC ADAPTER | Lenovo IdeaPad S145-15AST (Lenovo IdeaPad S145) | Acer TravelMate B3 11 (TMB311) |
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Input | AC 120/230 V (50/60 Hz) | - |
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Output | 45 Watt | 45 Watt, 5 / 9 / 12 / 15 / 20 V, 3 A |
INPUT | Lenovo IdeaPad S145-15AST (Lenovo IdeaPad S145) | Acer TravelMate B3 11 (TMB311) |
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Type | Keyboard, touchpad | Keyboard, touchpad |
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Numeric Keypad | Yes | - |
Features | Multi-touch touchpad, buttonless touchpad | Multi-gesture touch pad, spill-resistant, precision touchpad, mechanically anchored keys, OceanGlass touchpad, serviceable keyboard design |
CONNECTIONS & EXPANSIONS | Lenovo IdeaPad S145-15AST (Lenovo IdeaPad S145) | Acer TravelMate B3 11 (TMB311) |
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Interfaces | USB 2.0 2 x USB 3.1 Gen 1 HDMI Headphone/microphone combo jack |
HDMI 2 x USB 3.2 Gen 1 USB-C 3.2 Gen 1 (supports DisplayPort Alt Mode) (DC-In combo, Power Delivery) LAN Headphone/microphone combo jack |
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Memory Card Reader | 4 in 1 (SD Card, MultiMediaCard, SDHC Card, SDXC Card) | Yes (microSD) |
SOFTWARE | Lenovo IdeaPad S145-15AST (Lenovo IdeaPad S145) | Acer TravelMate B3 11 (TMB311) |
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Operating System (OS) | Windows 10 Home in S mode - English | Windows 11 Pro Education |
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Software Included | Microsoft Office (Trial) | - |
MISCELLANEOUS | Lenovo IdeaPad S145-15AST (Lenovo IdeaPad S145) | Acer TravelMate B3 11 (TMB311) |
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Included Accessories | Power adapter | USB-C power adapter |
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Security | 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 | Administrator password, system password, MIL-STD-810H tested |
Compliant Standards | RoHS, Energy-Related Products (ErP) Lot 3 | - |
SAR Value | - | 1.14 W/kg (body), 1.14 W/kg (head), 1.14 W/kg (limb) |
ENERGY STAR Certified | Yes | - |
Manufacturer Warranty | Limited warranty - 1 year - pick-up and return | Limited warranty - 1 year - carry-in International travellers warranty - 1 year |
Model Number | 15AST 81N3 | 33 |