Lenovo Chromebook S340 (81TB) vs. Lenovo ThinkPad C14 Chromebook (21C9)

Laptop Comparison, Reviews and Tests

In depth comparison and review of Lenovo Chromebook S340 (81TB) and Lenovo ThinkPad C14 Chromebook (21C9). 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.

Lenovo Chromebook S340 (81TB) Review

Advantages and disadvantages of Lenovo Chromebook S340 (81TB) based on its technical characteristics, features, user experience, expert reviews and price level.

affordable price

lightweight design

efficient battery life

solid build quality

fast boot times

limited storage capacity

average display resolution

fewer port options

mediocre performance

Lenovo ThinkPad C14 Chromebook (21C9) Review

Advantages and disadvantages of Lenovo ThinkPad C14 Chromebook (21C9) based on its technical characteristics, features, user experience, expert reviews and price level.

robust build quality

efficient performance

excellent keyboard feel

good battery life

affordable price

mediocre display resolution

limited storage capacity

no high-end GPU

fewer ports available

Laptop Comparison and Tests

Difference between Lenovo Chromebook S340 (81TB) and Lenovo ThinkPad C14 Chromebook (21C9)
72 % - Design
64 % - Display
65 % - Performance
75 % - Connectivity
75 % - Battery
82 % - Design
72 % - Display
75 % - Performance
84 % - Connectivity
85 % - Battery

Laptop Specifications Comparison

Lenovo Chromebook S340 (81TB) vs. Lenovo ThinkPad C14 Chromebook (21C9) Comparison Chart
DESIGN AND DIMENSIONS Lenovo Chromebook S340 (81TB) Lenovo ThinkPad C14 Chromebook (21C9)
Product Type Chromebook Chromebook
Dimensions (WxDxH) 32.89 cm x 23.435 cm x 1.88 cm 32.54 cm x 21.7 cm x 1.983 cm
Weight 1.4 kg 1.56 kg
Case Material Polycarbonate ABS Polycarbonate ABS (bottom), polycarbonate ABS (top)
Colour Dark orchid | Onyx black Abyss blue
DISPLAY Lenovo Chromebook S340 (81TB) Lenovo ThinkPad C14 Chromebook (21C9)
Screen Size (Type) 14" - TN 14" - IPS
LCD Backlight Technology LED backlight LED backlight
Screen Resolution 1366 x 768 (HD) 1920 x 1080 (Full HD)
Widescreen Yes Yes
Image Aspect Ratio 16:9 16:9
Image Brightness 220 cd/m² 250 cd/m²
Colour Gamut - 45% NTSC
Features Anti-glare Anti-glare, 170° viewing angle
PROCESSOR Lenovo Chromebook S340 (81TB) Lenovo ThinkPad C14 Chromebook (21C9)
CPU Intel Celeron N4000 / 1.1 GHz Intel Core i5 (12th Gen) 1235U / 1.3 GHz
Max Turbo Speed 2.6 GHz 4.4 GHz
Number of Cores Dual-Core 10-core
Cache 4 MB 12 MB
64-bit Computing Yes -
Features Integrated memory controller Integrated memory controller
MEMORY Lenovo Chromebook S340 (81TB) Lenovo ThinkPad C14 Chromebook (21C9)
RAM 4 GB (provided memory is soldered) 8 GB (provided memory is soldered)
RAM Type LPDDR4 SDRAM LPDDR4X SDRAM
Speed 2400 MHz 4266 MHz
Rated Speed 2400 MHz 4266 MHz
STORAGE Lenovo Chromebook S340 (81TB) Lenovo ThinkPad C14 Chromebook (21C9)
Main Storage Size (HDD/SSD) 32 GB eMMC - eMMC 5.1 128 GB eMMC - eMMC 5.1
AUDIO & VIDEO Lenovo Chromebook S340 (81TB) Lenovo ThinkPad C14 Chromebook (21C9)
Graphics Processor (GPU) Intel UHD Graphics 600 Intel Iris Xe Graphics
Max Monitors Supported - 3 external monitor(s)
Camera Yes - 720p Yes - 1080p
Resolution 1 Megapixel -
Camera Features - Privacy shutter, fixed focus
Sound Stereo speakers, microphone Stereo speakers, dual array microphone
Codec - Realtek ALC5682I
Compliant Standards High Definition Audio High Definition Audio, Waves MaxxAudio
COMMUNICATIONS Lenovo Chromebook S340 (81TB) Lenovo ThinkPad C14 Chromebook (21C9)
Wireless 802.11a/b/g/n/ac, Bluetooth 4.2 Bluetooth 5.1, 802.11a/b/g/n/ac/ax (Wi-Fi 6E)
Wireless Controller Intel Wireless-AC 9560 - M.2 Card Intel Wi-Fi 6E AX 211 - M.2 Card
Features Dual stream (2x2) Dual stream (2x2)
BATTERY Lenovo Chromebook S340 (81TB) Lenovo ThinkPad C14 Chromebook (21C9)
Technology Lithium Ion Lithium polymer
Battery Capacity (Size) 42 Wh 57 Wh
Battery Life Up to 10 hours Up to 11 hours
AC ADAPTER Lenovo Chromebook S340 (81TB) Lenovo ThinkPad C14 Chromebook (21C9)
Input AC 120/230 V (50/60 Hz) AC 100-240 V (50/60 Hz)
Output 45 Watt 65 Watt
INPUT Lenovo Chromebook S340 (81TB) Lenovo ThinkPad C14 Chromebook (21C9)
Type Keyboard, touchpad Keyboard, TrackPoint, UltraNav
Keyboard Backlight - Yes
Features Multi-touch touchpad, buttonless touchpad Spill-resistant, multi-touch touchpad, Chrome keyboard
CONNECTIONS & EXPANSIONS Lenovo Chromebook S340 (81TB) Lenovo ThinkPad C14 Chromebook (21C9)
Interfaces 2 x USB 3.1 Gen 1
USB-C 3.1 Gen 1 (supports DisplayPort Alt Mode) (Power Delivery)
USB-C 3.1 Gen 1 (supports DisplayPort Alt Mode) (DC-In combo, Power Delivery)
Headphone/microphone combo jack
2 x USB 3.2 Gen 2
2 x Thunderbolt 4 (supports DisplayPort 1.4) (Power Delivery 3.0)
HDMI
Headphone/microphone combo jack
Memory Card Reader Yes (microSD) Yes (microSD)
SOFTWARE Lenovo Chromebook S340 (81TB) Lenovo ThinkPad C14 Chromebook (21C9)
Operating System (OS) Google Chrome OS Google Chrome OS
MISCELLANEOUS Lenovo Chromebook S340 (81TB) Lenovo ThinkPad C14 Chromebook (21C9)
Included Accessories USB-C power adapter USB-C slim power adapter
Security Google Security Chip H1 Google Security Chip H1
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 - RapidCharge, MIL-STD-810H tested
Compliant Standards RoHS, Energy-Related Products (ErP) Lot 3 RoHS, Energy-Related Products (ErP) Lot 3
ENERGY STAR Certified Yes -
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
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