Toshiba's Chromebook 2 offers the same level of performance and the same caliber of display in a less premium package. You're getting a device that's just as capable -- only not as nice to use (and with less outstanding, though still generally quite sufficient, stamina). By accepting that tradeoff, you're keeping an extra $100 in your wallet.
All considered, I'd say this: The Toshiba Chromebook is certainly good enough for most casual computing purposes, and if cost is a concern, I wouldn't hesitate to get it. If you can justify the extra $100, though, the Dell Chromebook will give you a meaningfully better overall experience. Things like premium materials and a top-of-the-line trackpad make a laptop significantly more pleasant to use -- and given the choice, that's undoubtedly what you want.
With their potent mixes of performance, portability, quality and value, these two devices are the most advisable Chromebook purchases for most people right now. The only real question is how much you're looking to spend.
At a Glance
Dell Chromebook 13
Price: $429 (Intel Celeron/4GB RAM model)
Pros: Higher-end materials and elevated build quality; excellent 1080p IPS display; good keyboard; spectacular glass trackpad; solid performance; outstanding stamina; USB 3.0 support; dedicated HDMI-out port; support for external storage; includes 100GB of Google Drive storage for two years
Cons: Somewhat heavy; uses proprietary charger; external storage available only via micro SD card
At a Glance
Toshiba Chromebook 2
Price: $330 (2015 Intel Celeron/4GB RAM model)
Pros: Excellent 1080p IPS display; good keyboard; great speakers beneath keys; solid performance; respectable stamina; USB 3.0 support; dedicated HDMI-out port; support for external storage; includes 100GB of Google Drive storage for two years
Cons: Non-premium materials; build quality could be better; trackpad somewhat cheap-feeling; uses proprietary charger
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