In depth comparison and review of Acer TravelMate B3 (TMB311-31) and Lenovo ThinkPad T14 Gen 4 (21K3). 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 Acer TravelMate B3 (TMB311-31) based on its technical characteristics, features, user experience, expert reviews and price level.
durable design
affordable price
long battery life
robust parental controls
decent connectivity options
mediocre display quality
limited storage capacity
basic performance level
no backlit keyboard
Advantages and disadvantages of Lenovo ThinkPad T14 Gen 4 (21K3) based on its technical characteristics, features, user experience, expert reviews and price level.
robust build quality
excellent keyboard feel
powerful processor options
good battery life
impressive security features
heavier than competitors
average display brightness
limited color options
pricey base model
DESIGN AND DIMENSIONS | Acer TravelMate B3 (TMB311-31) | Lenovo ThinkPad T14 Gen 4 (21K3) |
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Product Type | Notebook | Notebook - 180-degree hinge design |
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Dimensions (WxDxH) | 29.5 cm x 21.5 cm x 2.09 cm | 31.77 cm x 22.69 cm x 1.79 cm |
Weight | 1.4 kg | 1.39 kg |
Case Material | - | Carbon fibre hybrid (top), polyphenylene sulfide (bottom) |
Colour | Shale black | Thunder black |
DISPLAY | Acer TravelMate B3 (TMB311-31) | Lenovo ThinkPad T14 Gen 4 (21K3) |
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Screen Size (Type) | 11.6" | 14" - IPS |
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LCD Backlight Technology | LED backlight | - |
Screen Resolution | 1366 x 768 (HD) | 1920 x 1200 (WUXGA) |
Widescreen | Yes | Yes |
Image Aspect Ratio | 16:9 | 16:10 |
Image Brightness | 220 cd/m² | 300 cd/m² |
Colour Gamut | - | 45% NTSC |
Features | Anti-glare, ComfyView, 10 ms response rate, Narrow Border Display | Anti-glare |
PROCESSOR | Acer TravelMate B3 (TMB311-31) | Lenovo ThinkPad T14 Gen 4 (21K3) |
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CPU | Intel Celeron N4120 / 1.1 GHz | AMD Ryzen 5 Pro 7540U / 3.2 GHz |
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Max Turbo Speed | 2.6 GHz | 4.9 GHz |
Number of Cores | Quad-Core | 6-core |
Cache | 4 MB | L3 - 16 MB |
64-bit Computing | Yes | - |
Features | Intel Burst Technology | Integrated memory controller |
MEMORY | Acer TravelMate B3 (TMB311-31) | Lenovo ThinkPad T14 Gen 4 (21K3) |
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RAM | 4 GB (provided memory is soldered) | 16 GB (provided memory is soldered) |
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RAM Type | LPDDR4 SDRAM | LPDDR5X SDRAM |
Speed | - | 6400 MHz |
Rated Speed | - | 6400 MHz |
STORAGE | Acer TravelMate B3 (TMB311-31) | Lenovo ThinkPad T14 Gen 4 (21K3) |
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Main Storage Size (HDD/SSD) | 64 GB eMMC - SanDisk | 256 GB SSD M.2 2280 PCIe 4.0 x4 - TCG Opal Encryption 2, NVM Express (NVMe) |
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AUDIO & VIDEO | Acer TravelMate B3 (TMB311-31) | Lenovo ThinkPad T14 Gen 4 (21K3) |
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Graphics Processor (GPU) | Intel UHD Graphics 600 | AMD Radeon 740M |
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Memory Allocation Technology | Shared Video Memory (UMA) | - |
Max Monitors Supported | - | 3 external monitor(s) |
Camera | Yes - HD | Yes - 1080p |
Camera Features | - | Privacy shutter, Windows Hello, fixed focus, hybrid FHD/IR camera, Ultrasonic Human Presence Detection |
Sound | Stereo speakers, microphone | Stereo speakers, dual array microphone |
Codec | - | Realtek ALC3287 |
Compliant Standards | High Definition Audio | High Definition Audio, Dolby Audio |
Audio Features | - | Input: Dolby Voice, 360° far-field |
COMMUNICATIONS | Acer TravelMate B3 (TMB311-31) | Lenovo ThinkPad T14 Gen 4 (21K3) |
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Wireless | 802.11a/b/g/n/ac Wave 2, Bluetooth 5.0 | Bluetooth 5.1, 802.11a/b/g/n/ac/ax (Wi-Fi 6E) |
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Wireless Controller | Intel Wireless-AC 9560 - M.2 2230 | MediaTek RZ616 |
Network Interface | Gigabit Ethernet | Gigabit Ethernet |
Ethernet Controller | - | Realtek RTL8111EPV |
Compliant Standards | - | DASH |
Features | - | Wake-on-LAN (WOL), dual stream (2x2) |
WWAN |
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Generation | - | 4G upgradable |
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BATTERY | Acer TravelMate B3 (TMB311-31) | Lenovo ThinkPad T14 Gen 4 (21K3) |
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Technology | 4-cell Lithium Ion | Lithium polymer |
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Battery Capacity (Size) | 48 Wh | 52.5 Wh |
Battery Life | Up to 12 hours | - |
AC ADAPTER | Acer TravelMate B3 (TMB311-31) | Lenovo ThinkPad T14 Gen 4 (21K3) |
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Input | AC 120/230 V (50/60 Hz) | AC 100-240 V (50/60 Hz) |
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Output | 45 Watt, 19 V | 65 Watt |
INPUT | Acer TravelMate B3 (TMB311-31) | Lenovo ThinkPad T14 Gen 4 (21K3) |
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Type | Keyboard, touchpad | Keyboard, TrackPoint, UltraNav |
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Numeric Keypad | Yes | - |
Keyboard Backlight | - | Yes |
Features | Multi-gesture touch pad, Acer FineTip keyboard | Spill-resistant, multi-touch touchpad, Fn keys with Unified Communications controls |
CONNECTIONS & EXPANSIONS | Acer TravelMate B3 (TMB311-31) | Lenovo ThinkPad T14 Gen 4 (21K3) |
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Interfaces | 2 x USB 3.2 Gen 1 HDMI Headphone/microphone combo jack LAN |
USB 3.2 Gen 1 (Always On) USB 3.2 Gen 1 USB-C 3.2 Gen 2 (supports DisplayPort 1.4a Alt Mode) (Power Delivery 3.0) USB4 (supports DisplayPort 1.4a Alt Mode) (Power Delivery 3.0) HDMI (4K support) LAN Headphone/microphone combo jack |
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Memory Card Reader | Yes (microSD) | - |
SOFTWARE | Acer TravelMate B3 (TMB311-31) | Lenovo ThinkPad T14 Gen 4 (21K3) |
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Operating System (OS) | Windows 10 Pro 64-bit Edition National Academic | Windows 11 Pro - English |
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Software Included | - | Glance by Mirametrix |
MISCELLANEOUS | Acer TravelMate B3 (TMB311-31) | Lenovo ThinkPad T14 Gen 4 (21K3) |
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Included Accessories | Power adapter | USB-C power adapter |
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Security | Trusted Platform Module (TPM 2.0) Security Chip | Discrete Trusted Platform Module (TPM 2.0) Security Chip with Microsoft Pluton, fingerprint reader, smart card reader |
Security Slot Type | Kensington security slot | Kensington nano security slot |
Theft/Intrusion Protection | Security lock slot (cable lock sold separately) | Security lock slot (cable lock sold separately) |
Features | Administrator password, hard drive password | Administrator password, system password, power-on password, RapidCharge, MIL-STD-810H tested, NVMe password, certificate based BIOS authentication, FIDO (Fast Identity Online) authentication |
Compliant Standards | - | RoHS, Energy-Related Products (ErP) Lot 6, TCG Certified, Energy-Related Products (ErP) Lot 26, TCO Certified 9.0 |
Max Operating Temperature | - | 35 °C |
Min Operating Temperature | - | 5 °C |
Humidity Range Operating | - | 8 - 95% |
Manufacturer Warranty | Limited warranty - 1 year - carry-in International travellers warranty - 1 year |
Base warranty - 3 years - pick-up and return Base warranty - battery - 1 year Extended warranty - 3 years - on-site Extended warranty - 1 year - on-site - response time: next business day |
Model Number | C5KC | - |