Not both at the same time but you can choose which it displays in when you set it up yes.

Yes,but you have to set one or the other.It will not display both at the same time,regards,Bingo.

Yes both, you choose which you would prefer on set up. I always use MPH but there are two profile options so you can have one set to MPH and one to KMPH and switch between the two. I don't do this so I don't know if switching whilst on a ride would reset all the info.

Yes, units are switchable - the included giant multilingual sheet of paper has instructions.

Yes, but its part of the initial setup, so you choose one or the other. You can’t change while you are riding.

yes

yes it does, I use it in miles not km

Yes, there is a little button on the back of the computer which you can just press to toggle between the two

Yes. You can't flick between the two while riding but it is in the settings.

Yes, it can provide reading in both formats.

Waterproof? You can ride your bike in the rain and then should wipe your computer down with the rest of your bike. the computer is like any other, look after it and it will serve you well. The computer is a bike computer and is well designed for outdoor use.

Yes

I was out in a lightish rain shower the other day with the computer and it's still working!

Seems like it should be - the only buttons are on the underside and hence very protected from the elements. To change the display you press the face of the device itself and it pivots slightly to press a rear button against the mount, it's a nice design idea.

If you submerged it, perhaps it wouldn't fare well - but it's quite hard to cycle in rivers and lakes anyway.

Waterproof, don’t know if anything ever is, but it is certainly water resistant enough for riding in the rain. The battery cases on the computer and sender both have rubber O rings

Went out in the rain this week. It still works.

Wouldn't drop it in the bath though just in case

It's very showerproof rather than waterproof.

Yes - i've cycled in what seems like tropical downpours and never had a problem with it

Yes it is... Mine worked without fault during a very very wet weekend in Wales!

yes

you'd have to keep changing the wheel circumference settings from 700c to 26" mtb wheels, so i'd opt for 2 units or go for a garmin edge unit, which you could swap over without any issues

Yep, it'll store 2 wheel sizes and you can flip between them. There's a trip odometer display for each.

You can buy a second mount + sensor for a not-insane price, I think.

you'd have to have a lot of cable ties to re-attach it each time you changed it from bike to bike and you would have to change the tyre size details each time which would result in losing your total distance data. Probably better just to buy two! (funds permitting)

During the initial set-up it requires wheel and tyre size + width info, you could use it on two bikes but for precise speed and distance you may need to set up for each swap? Unless wheel size and tyres are the same, which would then be simpler. The zip-tie fixing for the forks sensor could be tricky...

Yes, but you would need to get yourself a second wireless transmitter, and at the price of these babies, best to buy a second one and have both your bikes set up in my opinion.

Yes, I've been doing this for a while but you'll need a second magnet & sensor for the second bike.
The different wheel sizes can be programmed into the computer and then you can select which one your using at the start of the ride (don't forget to swap it back though when you change back between bikes!)

You would need another sensor. The computer does have two wheel sizes I think. So you would have to select the appropriate wheel size for each bike.

The main speedometer digits are 15mm and the odometer, average speed, trip etc are 7mm digits. Very clear even in bright sunlight.

About the size of the display on a casio watch. No problem seeing them.

Large and clear, I can see them without my glasses

Same as the normal Strada. 15mm by 5mm. Easy to see at all times and in all conditions.

They do fit the standard strada mount, not sure on other cateye computers though

They are exactly the same, just the coloured casing is different

yes - the fitting kit is exactly the same as the original black or white wireless computers - only difference is the new choice of colours

Sure can. You can enter the diameter lenth manually

This computer allows for settings within a pre-set range that meets the needs of cyclists. As a modeller your question indicates a level of creativity. If you can place the sensors in the right spots it will work.

Yes you can set if for any wheel size. When you are taken through the set up of the product you enter (in centimetres) the length of one rotation of the wheel.

its not that advanced, they only shows details on the unit, not transferable to a computer. Go for a garmin edge 500 unit or similar garmin product

I would say not. It specifies that the transmitter has to be vertically in line with the receiver (unit). Sorry

This computer isn't the one you want for a stationary (spin) bike. Ideally you want a computer with HR and cadence for "spinning".