ASUS Chromebook C403

Updated on January 26, 2026

The ASUS Chromebook C403 is a rugged, education-focused laptop designed to withstand the rigors of classroom use while delivering reliable Chrome OS performance. Built around Intel’s Celeron N3350 processor with 4GB of RAM and 32GB of eMMC storage, this 14-inch Chromebook emphasizes durability over raw power, featuring MIL-STD-810G certification and a spill-resistant keyboard. It represents ASUS’s commitment to creating devices that can handle the drops, bumps, and spills common in K-12 environments while still providing students with a functional computing experience for web browsing, document editing, and educational apps.

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ASUS Chromebook C403 Comparison Chart

	ASUS Chromebook C403
Price	List Price: $154.99 Amazon Prices: Loading prices...
Model number	C403NA-WS42-BL
Performance Rating	2.8
Chromebook Plus	No
Processor	Dual-core 1.10 Ghz (max 2.40 Ghz) Intel Celeron N3350
RAM	4 GB
Internal Storage	32 GB eMMC
Screen Size	14"
Screen Resolution	1366x768
Screen Type	Anti-glare LED backlit, 220nits
Touch Screen	No
Stylus / Pen	No Stylus Support
Dimensions width x length x thickness	13.5 x 9.17 x 0.81 inches (342.9 x 232.92 x 20.57 mm)
Weight	3.75 lbs (1.7 kg)
Backlit Keyboard	No
Webcam	720p HD
WiFi	Wi-Fi 5 (802.11ac)
Bluetooth	Bluetooth 4.2
Ethernet	No
Cellular Modem	No
HDMI	No HDMI
USB Ports	2 USB 3, 2 USB-C
Thunderbolt Ports	No
Card Reader	microSD Card Reader
Battery	4 cell, 46WHrs, Li-ion
Battery Life	12.0 hours
Fanless	Yes
Auto Update Expiration Date	June, 2027

Detailed Insights into the ASUS Chromebook C403

The ASUS Chromebook C403 prioritizes durability and practicality over cutting-edge specifications, making it an ideal choice for educational institutions and families seeking a device that can survive daily student use. The chassis features a distinctive 3D-textured finish that resists fingerprints and scratches, while rubber bumpers along the edges provide protection against accidental drops. ASUS specifically designed this Chromebook to meet MIL-STD-810G military-grade standards, meaning it has been tested against vibration, temperature extremes, humidity, and mechanical shock. The spill-resistant keyboard can handle up to 66cc of liquid, giving students enough time to flip the device over and prevent permanent damage.

The 14-inch display uses a standard HD resolution of 1366x768 pixels, which some may find limiting compared to modern FHD panels. However, the anti-glare coating proves particularly valuable in classroom environments with fluorescent lighting or windows, reducing reflections that can cause eye strain during extended use. The 220-nit brightness is adequate for indoor use, though the panel struggles to remain visible in direct sunlight. The 180-degree hinge allows the screen to fold completely flat, enabling students to share their screens with classmates or teachers during collaborative activities without passing the entire laptop around.

Performance comes from Intel’s Celeron N3350 dual-core processor, which provides enough power for basic Chrome OS tasks like web browsing, Google Docs, and educational web apps. The 4GB of LPDDR4 RAM handles typical student workloads, though users will notice slowdowns when keeping more than 10-15 browser tabs open simultaneously. Storage is limited to 32GB of eMMC, which fills quickly if students try to keep many Android apps or offline files downloaded. ASUS compensates with a microSD card slot for expanded storage and the expectation that most work will be saved to Google Drive. There is no built-in Ethernet, but the USB-C ports support a USB Ethernet adapter for wired networking in testing labs. The fanless thermal design ensures completely silent operation, eliminating the distraction of fan noise in quiet classrooms or libraries.

Customer Reviews of the ASUS Chromebook C403

Amazon customers have given the ASUS Chromebook C403 a 4.2-star rating based on 244 reviews, indicating generally positive reception among education users and budget-conscious buyers. Reviewers consistently praise the device’s build quality and durability, with several teachers noting it has survived semester after semester of student use. The 12-hour battery life receives particular appreciation from users who value all-day computing without searching for outlets. Multiple reviewers mention successfully using the Chromebook for basic productivity, video streaming, and video conferencing.

Common complaints center around the limitations expected in this price range. Several reviewers express frustration with the 32GB storage filling up quickly, especially when using Android apps. Others note the display resolution feels dated and wish the panel were brighter for outdoor use. The weight of 3.75 pounds draws criticism from some reviewers who expected a lighter device, though others consider it reasonable given the rugged construction. A few reviews mention the non-backlit keyboard makes typing difficult in darker environments. Performance criticism remains relatively mild, with most users acknowledging the Celeron processor handles basic tasks adequately for the price point.

Conclusion

The ASUS Chromebook C403 delivers exactly what education environments demand: a durable, reliable laptop that can survive the chaos of classroom life while providing students with the tools they need for learning. The MIL-STD-810G certification and spill-resistant keyboard justify the slightly higher weight, while the 12-hour battery ensures the device lasts through a full school day. The Intel Celeron N3350 processor and 4GB RAM handle Chrome OS basics competently, though power users should look elsewhere. With an Auto Update Expiration date of June 2027, the C403 still has life left in it for families seeking an affordable entry into Chrome OS computing. For those prioritizing durability over display quality or storage capacity, the ASUS Chromebook C403 remains a sensible choice for education and casual home use.

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