据报道，按陆路入境的要求，旅客在没有智能手机的情况下，可以上网先提交自己的信息，然后把登记完成的页面截图保存下来，展示给边境处人员即可。
存在哪？

打印出来啊。根据官网，任何旅行没手机，打印出来即可。
No smartphone or taking a short trip?
Within 72 hours of your arrival in Canada or before taking a short trip outside Canada, you can sign in to ArriveCAN from a computer to get your ArriveCAN receipt. Print your receipt and take it with you when you travel. You can also have someone submit your travel information on your behalf.
https://www.canada.ca/en/border-services-agency/services/arrivecan.html