I just ordered a Measy B4A from Amazon (65 GBP):
http://j.mp/1tkEk2C
Manufacturer product page:
http://j.mp/1n5cOwU
It uses the Amlogic S802, same as some of the newer boxes, Quad-Core A9 @ 2GHz, Octa-Core Mali-450 GPU, 2GB Ram, 8GB flash, WiFi 2.4 GHz only, integrated IR receiver. Runs KitKat 4.4.2. Does
not include a remote.
I ordered this remote (RF 2.4 GHz air mouse + IR learning remote + keyboard @ 14 GBP):
http://j.mp/1n5d1QA
There are quite a few boxes with the same chip and specs. Some are more expensive than this, mostly because they include a remote, others are just ripping you off.
The only other more powerful and/or feature rich box right now that I could see is the Minix NEO X8-H (and equivalents) which uses the Amlogic S802-H chip (only difference to S802 is that it supports hdmi passthrough for dolby and dts, but that's useless in this box) and has a few extra features: 16GB, Dual band WiFi, external antenna, microphone jack, IR remote. However, it comes in at about 110 GBP which I think is too expensive. Amazon sells some which also include a free Minix Air Mouse (for 112 GBP):
http://j.mp/1n5dwKz
I'll pot back after I get and test the Measy B4A (and remote).
p.s. Some boxes are due to be released with slightly better SoCs (e.g. S812 with H265 decoding) but I'm not willing to wait.