Garmin Varia - Long Term Test

Garmin Varia Radar Rear Light – my thoughts 3 years in.

Words written by John Nicholson, Cycle To Work Business Manager. 

NB: This is not a technical specification review – there’s plenty of those to be found on-line. These are my thoughts having owned and used one for almost exactly three years.  Spoiler Alert: I love this bit of kit!!

First, the unit is working precisely as it was out of the box.  There seems to be little reduction in battery life*, the light is as bright and functional as it was when new and I’ve had zero issues with connectivity etc..

Some basic ‘stats’ – it’s just over 1000 days old.  I’ve ridden with it on pretty much every ride in those three years – over 300 rides, about 14000 miles (22500km), in all conditions….. 30C in Gran Canaria, Sleet & Snow in Scotland and mostly, on the generally wet & filthy roads in Yorkshire.  During this time it has never missed a blink (if you pardon the pun).

A bit about the ‘light’ for those not familiar with the Varia… it is a Radar unit, with a light (a very bright light).  The in-built Radar detects vehicles approaching from behind (from about 150 meters away – which is plenty) and when it does you get an audible bleep and a graphic on your head unit (works with Garmin & Wahoo) telling you a vehicle is approaching.  Better still, the graphic and audio warnings are brighter and louder depending on how fast the vehicle is approaching.  And….. the Varia’s light flashes more quickly and brighter to make you even more visible to the approaching driver – so everyone is more aware and safer.

It is, in short, a very clever and effective device.  Personally I can’t ride without it – or at least I feel far more vulnerable without it.  You’re very lucky these days as a cyclist if you don’t experience poor driving and near misses – this unit gives me a far more confident feeling that ‘I know what’s coming’ – and hopefully that drivers have seen me well in advance.

I have good hearing for a man of my tender years (although my wife wouldn’t agree!).  The Varia alerts me to traffic behind much earlier than my ears.  And of course in respect of  ‘silent’ EVs it is a complete essential.

It truly is the best accessory I’ve bought since I started Road cycling ten years ago… without doubt.  It is reliable and robust and most importantly an amazing safety feature imho.

Not cheap at £170 RRP I agree, but for me it’s so far worked out at less than a penny a kilometre (who doesn’t justify the cost of cycling in this way! 

*A word about battery life – I’ve not done a precise test on this, but I haven’t noticed any deterioration.  Also, I am pretty ‘religious’ in recharging my devices after every ride.  This in itself is probably not recommended in terms of getting best longevity from a Lithium Iron battery, but none the less I still always get a four hour ride without the device ‘dying’.  I’ve done a few ‘tons’ without running out of charge and often been out all day and still not run out of juice (I always turn off at café stops). 

Tech Specs;

Garmin Varia Radar RTL515

Dimension98.6 x 19.7 x 39.6 mm (3.9″ x 0.8″ x 1.6″)
Weight71.0 g (2.5 oz)
Light modesSolid, peloton, night flash, day flash
Lumens20 solid, 8 peloton, 29 night flash, 65 day flash
Water ratingIPX7
Battery life6 hours solid
8 hours peloton
6 hours night flash
16 hours day flash
ANT+®Yes (radar, bike lights)
BLEYes (radar)
Viewing angle220°
Visibility distance1.6 km (1 mile)
Rear tail light Yes