What do you need this computer to do?

Show power, speed, time, cadence, HR

I would get a used Garmin 520 or Wahoo Bolt. Those should be cheap now with all the new products just announced. They are the former standard bearers and rock solid.

I’ve been using a 520 on my TT bike for the rides for three years, and it is perfect.

I read that the 520 lacks bluetooth, does that mean it can't pair with my garmin hr strap? I need it to pair with all garmin sensors, quarq, and p hr strap.

I would probably go with the 130 bec of it price but it lacks power data fields that I like.

You don't need Bluetooth. All of your devices broadcast ANT+.

The 520 has Bluetooth to connect to phones to transfer information.The "lacks Bluetooth" comment is specifically in regard to accessory devices that broadcast over BT. This is mostly moot, because almost every accessory device sends over Ant+. I think Polar may be the only exception that does not support Ant+.

Your Garmin HR strap is probably Ant+ only, and it will work with nearly every Garmin device under the sun. Same with Quarq... those are Ant+.

If you are looking for cheap with power, check out the Lezyne Mega-C or Lezyne Mega-XL. (Avoid the Polar units like the M460, because they do not have Ant+.)

Edit: At $200 USD on sale at Amazon, this is pretty tough to beat: https://www.amazon.com/...ke-GPS/dp/B010SDBGQU

Great, thank you! One more question if you know it. Can my 920 watch and 520 both be connected to hr, sensors, and power meter at the same time?

Yes, I do this all day long. I have both my watch (was 735XT now 945) and my 520 connected to all of my bike and HR sensors. I use the watch to capture the entire triathlon race. But, I use my bike computer simultaneously to capture just the bike. It works perfectly.

And, I just did a couple test rides like this on Sunday to check out my new 945. In general, an Ant+ sending device (speed, cadence, power, HR, etc.) can connect to multiple receiving devices.

Yup - no issues there.

I used an old 910 as a bike computer for a while. Worked fine. If you're looking to upgrade watches anytime soon you could do the same w/ your 920.

I finally got a 520+ for Christmas. Perfect size for what you're looking for.

lezyne

I just raced with my Garmin 520+ and loved it! It gave me everything I needed and is easy to get started on the bike after I get out of T1. I even forgot to turn it off when I went into T2 but I was able to delete the extra time through Training Peaks the next day. 520 would be all you need, I think the new Garmin that came out looks a bit excessive to race with, way too much information to comprehend while you're racing IMO.

Turn on auto pause and start the activity before you leave transition for the swim start. Then there's not need to start it in T1 or stop it in T2 and no missed data at the start, no junk time at the end.

Ah nice I figured there was another way to do this and not have to mess with it but I hadn't tried much to figure it out. Thanks!

I'll +1 the 520. I race with a 920xt and a 520. 920 to keep total time, and 520 for use on bike. Never had a problem with connections on either. As an added bonus, if I mess up pressing the lap buttons on the watch, i have the ride data still stored on the 520 to download and look at later.

Did the same thing at IMTX. Proposed solution is genius. Thanks for the suggestion.

If you do this remember to set the "auto power down" setting to off or it will shut down while you're swimming.

Also make sure that you have paired with all of your sensors (power, heart rate, speed), or it may not pick them up.