the older battery does not fit the newer Nao+
battery life seemed somewhat limited
the light hue is very white and does not bring out the contrast
Nao+ is a big jump over the first Nao
it s hard to account for a maximum burn time
video upload may not work as expected
Ni-Cd rechargeable batteries are not compatible
no flashing red light here to help people behind
Requires Bluetooth connected phone - Android or Apple
Ninety-minutes is just not enough for many outdoor activities
Neither light can hold their max lumens rating in manual mode
not to be mistaken with lighting profiles or levels
Flashing an SOS message on a headlamp seems a little desperate
flashlight battery is so weak that the light provided is useless
battery slowly loses power the light starts to dim
Rear light can't be switched on or off without use of the app
the Bluetooth Smart protocol seems not to impact on battery life
Nao+ can't be programmed with Petzl OS
It does not store any personal data
not a huge difference between the two lights
The sensor does not react the best to cold temperatures
The USB cable charger could be longer for additional functionality
Expensive compared to other options on the market
lack of sos in high mountains is a deterrent though
beam-diffused or spot
NAO has been stuffed into bags and packs
dropped and manhandled
rubber button cover is larger than the actual switch underneath
Nao did not perform as advertised and experienced several errors
the lights vary in beam focus quite drastically
headlamp straps were tested a little loose
illuminated objects appear to shift
it s very pricey and not ultralight
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headband smelled awful after a sweat sesh
it can also be annoying during a trail race
the battery life to be pretty terrible
it s a little heavy
headlamp lacks a night vision red LED in the front of the lamp
battery pack being placed at the back of the strap
does not get in the way
preloaded multi activity profile straight out the box
It requires yet another type of usb cable
only a very dim light was produced
usability is poor
annoyingly not the other way round
Battery life is too short for long night approaches
battery life is short for a headlamp
LED indicator does not work for the non-rechargeable batteries
the battery life is a bit short
Battery indicator does not work with standard alkaline or lithium batteries
Goofy-like images of me getting tangled
otherwise innovative reactive lighting technology is distracting
reactive technology was frustrating around camp
the instrumentation gets confused and the light flickers annoyingly
No cherry-picked units sent by manufacturers
the stepped changes in light prove to be distracting at close distances
the contacts seem to be missing
NAO+ do not take standard sized batteries (e
only the red case lacks the support for replaceable batteries
Can dim down at inopportune moments
reactive lighting a bit annoying at times
Switching between modes can be confusing Well
It may not display this or other websites correctly
Difficult to predict exact battery duration
wider straps are a hard requirement
lack of real feature differentiation
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