Here is what I found to be the situation with the 1490 vs. 1470:If you have a 15 inch laptop, it will fit in either one, no problem. If you want a little added depth to maybe bring a power bank or your charger along, the 1490 will do it easily where you need use a little strategy and compromise with the 1470. Both are durable and Pelican known quality. To me, the 1490 just steps into the 'won't fit in my backpack or duffle bag easily' category. No big deal, but for some it may dissuade. I appreciate the roominess of the 1490 a little more than the 1470, not for the added foam protection, but for the placement of the laptop, power bank and charger. If you are thinking about the 1470 vs 1490, both will accommodate a 15 inch laptop (Toshiba Satellite) with ease, however even at a pound heavier and noticeably larger the 1490 won me over due to charger room.