Comparing these both :
1. having peripheral devices connected to both bluetooh and wifi, such as an OBDLink Scantool connected to bluetooth while pulling data from a hotspot, or
2. buying the upcoming wifi obdlink scantool, and running all peripherals from wifi?
WiFiTethering via WiFi is one of the easiest to set up, and is arguably compatible with the most types of devices. Simply put, if your laptop (or other device) includes WiFi support, you should be able to tether via WiFi just as quickly and as easily as you would to any other hotspot.
Major advantages using this technique are that it’s quick, easy, and compatible with almost everything. You’re also not limited to connecting just one device like you are with the USB method, though some OEMs cap connections to five or so.
WiFi, depending on what security configuration you use, could be anywhere from not secure at all, to “fairly” secure. Also, since you’re not required to plug in to a USB port, your battery is going to drain while you’re thusly tethered. Bringing along a wall charger or a portable battery pack would be advisable.
No, it’s not just for headsets and handsfree kits! Bluetooth is an excellent method for tethering. Similar to Wifi, you can connect multiple devices to your smartphone wirelessly. Just like with WiFi, since no cable is required, power consumption is something to keep in mind.
Since Bluetooth is specifically designed for mobile use, in most cases it’s a bit nicer on your battery and consumes less power to do the same job as WiFi tethering does. Also like WiFi, Bluetooth is “fairly” secure.
Unlike WiFi, tethering via Bluetooth isn’t all that common. Sure, people do it, but it’s a little more involved to set up than WiFi, and a little more involved every time you want to use Bluetooth tethering. If power consumption is a concern, Bluetooth is probably the way to go, if you’re willing to configure it.
SO like that .... Comparing both ...Bluetooth does not Drain the battery .... Rather than Wi-Fi Drains battery
This is my opinion
Hit thanks if i have helped anybody