Lenovo Chromebook S340

Updated on June 20, 2026

The Lenovo Chromebook S340 was an entry-level 14-inch Chromebook for students, home users, and anyone who needed a straightforward device for everyday web-based tasks. The Intel Celeron N4000 processor from Intel’s Gemini Lake generation and 4GB of RAM put portability and all-day battery life ahead of raw computing power. It arrived in 2019 alongside its convertible sibling the Lenovo Chromebook C340, taking a traditional clamshell approach while keeping a touchscreen display. Google extended its Auto Update Expiration to June 2029 (the original AUE was June 2025), so existing units still receive Chrome OS updates for now, even though the device is no longer sold new.

Lenovo Chromebook S340 Comparison Chart

	Lenovo Chromebook S340	Lenovo Chromebook S340
Price	List Price: $319.99 Amazon Prices: Check Price on Amazon	List Price: $249.99 Amazon Prices: Check Price on Amazon
Model number	81V30000US	81TB0000US
Performance Rating	3.1	3.1
Chromebook Plus	No	No
Processor	Dual-core 1.10 Ghz (max 2.60 Ghz) Intel Celeron N4000 Processor	Dual-core 1.10 Ghz (max 2.60 Ghz) Intel Celeron N4000 Processor
RAM	4 GB	4 GB
Internal Storage	32 GB eMMC	32 GB eMMC
Screen Size	14"	14"
Screen Resolution	1920x1080	1366x768
Screen Type	IPS	anti-glare
Touch Screen	Yes	No
Stylus / Pen	No Stylus Support	No Stylus Support
Dimensions width x length x thickness	12.9 x 9.2 x 0.74 inches (327.66 x 233.68 x 18.8 mm)	12.9 x 9.2 x 0.74 inches (327.66 x 233.68 x 18.8 mm)
Weight	3.02 lbs (1.37 kg)	3.02 lbs (1.37 kg)
Backlit Keyboard	No	No
Webcam	720p	720p
WiFi	Intel 9560 802.11AC (2 x 2)	Intel 9560 802.11AC (2 x 2)
Bluetooth	Bluetooth 4.2	Bluetooth 4.2
Ethernet	No	No
Cellular Modem	No	No
HDMI	No HDMI	No HDMI
USB Ports	2 USB 3, 2 USB-C (USB-C ports support display output and power input)	2 USB 3, 2 USB-C (USB-C ports support display output and power input)
Thunderbolt Ports	No	No
Card Reader	microSD Card Reader	microSD Card Reader
Battery	3 cell, 42 WHr, Lithium-ion	3 cell, 42 WHr, Lithium-ion
Battery Life	10.0 hours	10.0 hours
Fanless	Yes	Yes
Auto Update Expiration Date	June, 2029	June, 2029

A 14-inch fanless clamshell built for light web work

The silver or platinum gray plastic chassis measured 12.9 x 9.2 x 0.74 inches and weighed just over 3 pounds, portable enough for a student carrying it between classes. Unlike its convertible counterpart, this one used a traditional clamshell design with a 180-degree hinge that let the display fold flat for collaborative viewing, but not beyond for tent or tablet modes. The plastic build and the pared-back feature list were typical of the budget Chromebooks schools and families bought through the late 2010s.

The 14-inch display carried an anti-glare coating and a touchscreen, both practical additions at this price. The 1366x768 (HD) resolution was common among budget Chromebooks of the era, though text and images appeared less sharp than on the Full HD panels of premium models. NotebookCheck, who reviewed the touchscreen variant (S340-14T), praised the low-reflection coating for its effectiveness at reducing glare from overhead lighting and windows. The touchscreen helped with navigating Android apps from the Google Play Store, which mattered more as Chrome OS expanded its app ecosystem.

Two USB Type-C ports supported display output and Power Delivery charging, so the machine did not need a proprietary charger. The two USB 3.0 Type-A ports kept compatibility with existing peripherals like mice, flash drives, and external keyboards. The microSD card slot expanded storage beyond the 32GB internal eMMC, and the Intel Wireless-AC 9560 with Bluetooth 4.2 handled 2x2 MIMO wireless for the era. There was no built-in Ethernet port, though anyone who needed wired networking could connect a USB Ethernet adapter through one of the USB-A ports.

The dual-core Celeron N4000 with 4GB of RAM handled basic web browsing with multiple tabs, Google Workspace applications, video streaming, and lightweight Android apps without issue. Extensive multitasking with 15+ tabs, video editing, or resource-intensive Android apps ran into the hardware’s limits. NotebookCheck’s benchmarking of the S340-14T variant recorded a battery runtime of 8 hours and 32 minutes during their WiFi test. The fanless design ran without any mechanical noise at all.

Reviewers rated it adequate for basic work with an effective matte screen

NotebookCheck’s Assessment

NotebookCheck reviewed the Lenovo Chromebook S340-14T and found it to be “an affordable Chromebook without any real quirks.” Their reviewer Sascha Mölck noted that the Celeron N4000 processor from Intel’s Gemini Lake generation provided adequate performance for typical Chromebook workloads, including web browsing, streaming, and productivity applications. Their Geekbench and WebXPRT scores placed the machine among entry-level Chromebooks of its era.

The matte finish cut distracting reflections, the review said. It flagged the HD resolution and modest brightness levels as limitations for working outdoors or in brightly lit environments. The battery tested at 8 hours and 32 minutes under continuous WiFi load, short of the 10-hour rating.

PCWorld’s First Look

PCWorld covered the 2019 launch of the Lenovo C340 and S340 Chromebooks, positioning the S340 as the more affordable traditional clamshell for buyers who did not need the convertible’s 2-in-1 flexibility. Both models shared the same Intel Celeron N4000 processor and featured similar port selections, with the difference being the S340’s conventional hinge against the C340’s 360-degree convertible design.

Light schoolwork and streaming fit the 4GB configuration

Students took to the lightweight design and the battery life that covered a full day of classes without hunting for an outlet. The touchscreen added convenience for scrolling through documents, navigating Android apps, and the occasional educational game. Parents bought the S340 as a first computer for children, where Chrome OS security and the modest price lowered the stakes on both malware and accidental damage.

Home users who primarily consumed content (streaming Netflix, browsing social media, reading news, and managing email) got everything they needed without the complexity of Windows or macOS. The fanless design kept the machine silent while streaming video, and the battery could power through multiple movies during travel. Google’s Family Link integration ran well here, letting parents manage screen time and content filtering for younger users. Students in school settings may have also encountered the Chromebook magnet trick, where classmates use magnets to trigger lid sensors and put devices to sleep.

A Google Meet video call while sharing a Google Slides presentation with several background tabs strained the 4GB of RAM. The 32GB eMMC storage filled up quickly once numerous Android apps went on, which meant regular management or reliance on cloud storage. The HD resolution made detailed spreadsheet work and document editing feel cramped compared to Full HD alternatives.

A budget machine whose updates end in June 2029

Budget Chromebooks of this period competed with entry-level Windows laptops by offering better battery life, faster updates, and simpler operation at comparable or lower prices. The Intel Celeron N4000 processor delivered the performance expected at its price point, and the combination of touchscreen, USB-C connectivity, and reliable wireless made for a competent everyday machine during its supported lifetime.

The fanless design removed a mechanical failure point, the solid-state storage avoided the slow performance of the spinning hard drives still found in some budget Windows laptops of the era, and Chrome OS handled security patches automatically.

Google extended the Auto Update Expiration to June 2029 from its original June 2025 date, so existing units still receive Chrome OS updates and security patches for now. After June 2029, the device will keep functioning for basic tasks but stop receiving updates, which makes it a poor fit anywhere current security matters. Anyone shopping for a Chromebook today gets more from a newer model with a later AUE date and a faster processor.

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