Gopro 3+ silver , sony AS30 or SJ4000

Thinking of getting an action cam and after doing a little research i (think) ive narrowed it down to one of these two.
I can ge tthe gopro for £170 and the sony for £160
Any suggestions/experiences on which trumps the other?
EDIT. Seems these sj4000 Chinese replicas of the gopro are getting some good reviews for the price. Anyone use one?
There in Amazon for £76 which is almost £100 less than the gopro silver, just wondering if the gopro Quality is worth the extra
I can ge tthe gopro for £170 and the sony for £160
Any suggestions/experiences on which trumps the other?
EDIT. Seems these sj4000 Chinese replicas of the gopro are getting some good reviews for the price. Anyone use one?
There in Amazon for £76 which is almost £100 less than the gopro silver, just wondering if the gopro Quality is worth the extra

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Also interested at that price.
Thats from another member.
Not sure if they got better with the as30
Only thing with gopro is you feel like your paying a massive premium for the name.
The misses can get a discount at her work that sells them.
£170 for Gopro 3+, buy a few and sell them on for a profit on here
The SJ4000 gets great reviews for the price. Although if you can get a Gopro 3 for £170 then I'd be very tempted.
"I keep getting eureaka moments ... followed very quickly by embarrassment when someone points out I'm a plank"
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viewtopic.php?f=40066&t=12974427&hilit=sj4000#p18939367
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Its only the silver though which can be got for £199 at a few places now. Just not sure if the gopro has enough extra quality to warrant the extra £100
Does the vid quality look better than it does on youtube?
Looks OK on my connection.
Seriously tempted with the SJ4000 for the cash.
Chris
Current FS: 2017 Nukeproof Mega 275
Current HT: 2017 Nukeproof Scout 275
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Previous FS: 2014 Nukeproof Mega TR 26'er
I've seen this vid a couple of times on different formats (iPad, PC, Galaxy S2) it looks great on some and rough on others (iPad isn't great). I'd be happy with the SJ4000 for the price.
"I keep getting eureaka moments ... followed very quickly by embarrassment when someone points out I'm a plank"
Scott Genius MC 30 RIP
Nukeproof Mega AM 275 Comp
Cube LTD Rigid Commuter
Ribble 7005 Sportive
Looks pretty poo to me.. but then I'm convinced YouTube have changed their settings or something. Some of my own vids on a Contour used to look a lot better!
NukeProof Mega FR 2012
Cube NuRoad 2018
Previous:
2015 Genesis CdF 10, 2014 Cube Hyde Race, 2012 NS Traffic, 2007 Specialized SX Trail, 2005 Specialized Demo 8