Very interested in this but can others monitor your web activity / emails with this?

This is not how the internet works. Unless you host your own email server off of your own computer, your emails are already on the internet, accessed via a portal (either a web browser or an on-device email client). Because of that, if someone hacked into your email provider, they could, technically, read your emails. If you want security from outside eyes looking on your computer and inside your network, then setting up your router and APs properly is key to prevent someone from prying eyes from getting in. But, even more importantly, ensuring your computer is secure (has a password that is actually good, you're using 2FA for all your accounts where possible, and you're keeping your computer up to date with security fixes) and using privacy-safe browsers (read: not Chrome) for your web browsing will keep eyes off your activity. All that said, unless you have a reason to be worried about prying eyes, or you're doing things like emailing SSNs and credit card numbers (which you shouldn't EVER do), the worst thing someone would do with your web activity and your emails is sign you up for mailing lists, ads, and spam.

Is this comparable with Ring doorbell cam’s ?

Yes you can. But you have to do a little configuration to make it works. Check out the article below for more detail. https://community.ui.com/questions/SOLVED-Ring-Doorbell-Connectivity-Issues-to-Unifi/ea902167-d95b-4ac7-b2e3-48baf6498602

is this compatible for 220V?

Hi Sir, Thank you for reaching us to answer your question, We are happy to answer your questions: UniFi Dream Machine (UDM) Supported Voltage Range 100 - 240VAC. Hope we manage to answer your question, if you need any more information or clarification, we are happy to help and answer you. Sincerely, Customer success team Gulf International Consultancy LTD.

Hi, is it possible to create a vlan dedicated to my wireless security cameras (no ubiquiti cams) on a udm? i am not sure why i would need udm-pro ?

Hi, According to Ubiquiti document, you can create VLANs. Also UMD Dream Machine Pro can create VLANs as well. you can find the link here for guidance how to create VLANs in the UDM https://www.youtube.com/watch?v=nvbtlMeLP_w Also, You can find either one of it in the link below for UDM and UDM PRO UDM https://www.amazon.com/Ubiquiti-Networks-UDM-UniFi-Machine/dp/B081R9FC64/ref=sr_1_7?dchild=1&m=A1K53W0B4GAVKN&marketplaceID=ATVPDKIKX0DER&qid=1632342021&s=merchant-items&sr=1-7 UDM-PRO https://www.amazon.com/Machine-UDM-PRO-Rackmount-10Gbps-Multi-Application/dp/B086967C9X/ref=sr_1_3?dchild=1&m=A1K53W0B4GAVKN&marketplaceID=ATVPDKIKX0DER&qid=1632154536&s=merchant-items&sr=1-3

ASIN	B081R9FC64
Best Sellers Rank	#54,101 in Electronics ( See Top 100 in Electronics ) #372 in Computer Routers
Date First Available	January 2, 2020
Is Discontinued By Manufacturer	No
Item Weight	2.31 pounds
Item model number	UDM
Manufacturer	Ubiquiti Networks
Product Dimensions	4.33 x 4.33 x 7.24 inches

Ubiquiti UniFi Dream Machine dual_band

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