I want to buy a phone (Xiaomi Redmi 4 Prime) that will not have 4G compatibility with Koodo, but does work on 3G. I will mostly use this phone where I have access to Wifi, and thus don't need data on my phone plan. I will get Koodo's $15/month plan. I will buy data boosters so I can check email/maps when I don't have Wifi. I can do this with 3G, even though it will be slower than 4G, correct?
Is anything other than data affected by not having 4G? Calling and texting won't be affected, but apps like Snapchat and Whatsapp will be slower when I use data (from boosters) instead of Wifi, right?
4G: 1800, 1900, 2100, 2300, 2500, 2600 MHz
3G: 1900, 800, 1900, 2100, 850, 900 MHz
2G: 1800, 1900, 850, 900 MHz
Willmyphonework.net confirms that this phone can work with Koodo for 3G but not 4G.