Side by side comparison and review of Acer TravelMate B3 (TMB311-31) and Lenovo ThinkPad X13 Gen 4 (21EX). 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 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 X13 Gen 4 (21EX) based on its technical characteristics, features, user experience, expert reviews and price level.
robust build quality
excellent keyboard comfort
impressive security features
good battery life
portable design
average display brightness
limited graphics performance
noisy under load
higher price point
| DESIGN AND DIMENSIONS | Acer TravelMate B3 (TMB311-31) | Lenovo ThinkPad X13 Gen 4 (21EX) |
|---|
| Product Type | Notebook | Notebook |
|---|---|---|
| Dimensions (WxDxH) | 29.5 cm x 21.5 cm x 2.09 cm | 30.17 cm x 21.48 cm x 1.595 cm |
| Weight | 1.4 kg | 1.09 kg |
| Case Material | - | Aluminium (bottom), carbon fibre hybrid (top) |
| Colour | Shale black | Deep black |
| DISPLAY | Acer TravelMate B3 (TMB311-31) | Lenovo ThinkPad X13 Gen 4 (21EX) |
|---|
| Screen Size (Type) | 11.6" | 13.3" - IPS |
|---|---|---|
| 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 | - | 100% sRGB |
| Features | Anti-glare, ComfyView, 10 ms response rate, Narrow Border Display | Anti-glare |
| PROCESSOR | Acer TravelMate B3 (TMB311-31) | Lenovo ThinkPad X13 Gen 4 (21EX) |
|---|
| CPU | Intel Celeron N4120 / 1.1 GHz | Intel Core i5 (13th Gen) 1335U / 1.3 GHz |
|---|---|---|
| Max Turbo Speed | 2.6 GHz | 4.6 GHz |
| Number of Cores | Quad-Core | 10-core |
| Cache | 4 MB | 12 MB |
| 64-bit Computing | Yes | - |
| Platform Technology | - | Intel Evo |
| Features | Intel Burst Technology | Integrated memory controller |
| MEMORY | Acer TravelMate B3 (TMB311-31) | Lenovo ThinkPad X13 Gen 4 (21EX) |
|---|
| RAM | 4 GB (provided memory is soldered) | 16 GB (provided memory is soldered) |
|---|---|---|
| RAM Type | LPDDR4 SDRAM | LPDDR5 SDRAM |
| Speed | - | 4800 MHz |
| Rated Speed | - | 6400 MHz |
| STORAGE | Acer TravelMate B3 (TMB311-31) | Lenovo ThinkPad X13 Gen 4 (21EX) |
|---|
| 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) |
|---|
| AUDIO & VIDEO | Acer TravelMate B3 (TMB311-31) | Lenovo ThinkPad X13 Gen 4 (21EX) |
|---|
| Graphics Processor (GPU) | Intel UHD Graphics 600 | Intel Iris Xe Graphics |
|---|---|---|
| Memory Allocation Technology | Shared Video Memory (UMA) | - |
| Max Monitors Supported | - | 3 external monitor(s) |
| Video System Features | - | Functions as Intel UHD graphics (for single-channel memory) |
| Camera | Yes - HD | Yes - 1080p |
| Camera Features | - | Privacy shutter, fixed focus |
| 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 X13 Gen 4 (21EX) |
|---|
| 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) |
|---|---|---|
| Wireless Controller | Intel Wireless-AC 9560 - M.2 2230 | Intel Wi-Fi 6E AX 211 |
| Network Interface | Gigabit Ethernet | - |
| Features | - | Dual stream (2x2) |
| WWAN |
|---|
| Generation | - | 4G upgradable |
|---|
| BATTERY | Acer TravelMate B3 (TMB311-31) | Lenovo ThinkPad X13 Gen 4 (21EX) |
|---|
| Technology | 4-cell Lithium Ion | Lithium polymer |
|---|---|---|
| Battery Capacity (Size) | 48 Wh | 54.7 Wh |
| Battery Life | Up to 12 hours | - |
| AC ADAPTER | Acer TravelMate B3 (TMB311-31) | Lenovo ThinkPad X13 Gen 4 (21EX) |
|---|
| Input | AC 120/230 V (50/60 Hz) | AC 100-240 V (50/60 Hz) |
|---|---|---|
| Output | 45 Watt, 19 V | 65 Watt |
| INPUT | Acer TravelMate B3 (TMB311-31) | Lenovo ThinkPad X13 Gen 4 (21EX) |
|---|
| Type | Keyboard, touchpad | Keyboard, TrackPoint, UltraNav |
|---|---|---|
| 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 X13 Gen 4 (21EX) |
|---|
| 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 2 x USB4 (supports Thunderbolt 4, DisplayPort 2.0 Alt Mode) (Power Delivery 3.0) HDMI 2.1 (4K support) Headphone/microphone combo jack |
|---|---|---|
| Memory Card Reader | Yes (microSD) | - |
| SOFTWARE | Acer TravelMate B3 (TMB311-31) | Lenovo ThinkPad X13 Gen 4 (21EX) |
|---|
| Operating System (OS) | Windows 10 Pro 64-bit Edition National Academic | Windows 11 Pro - English |
|---|---|---|
| Software Included | - | Glance by Mirametrix, Intel Connectivity Performance Suite |
| MISCELLANEOUS | Acer TravelMate B3 (TMB311-31) | Lenovo ThinkPad X13 Gen 4 (21EX) |
|---|
| Included Accessories | Power adapter | USB-C slim power adapter |
|---|---|---|
| Security | Trusted Platform Module (TPM 2.0) Security Chip | Discrete Trusted Platform Module (TPM 2.0) Security Chip, 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, Firmware Resiliency 3.0, certificate based BIOS authentication, FIDO (Fast Identity Online) authentication |
| Compliant Standards | - | RoHS, Energy-using Products (EuP) 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 - 1 year - on-site - response time: next business day |
| Model Number | C5KC | - |
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