I am using lenovo k6 power(3 GB ram grey color model) for a year now and this is my detailed review. Under 10000 its a great phone but seeing the market and competition although his phone does not excel in any department, still it is one of the greatest phone of lenovo it shows thy are getting better. For a detailed overview these are the pros and cons:
PROS:
CAMERA - one of the best camera, sharp and clear images and videos are also good better than xiaomi.
DISPLAY - Full HD display nice colors, vibrant& auto brightness is not missed.
SENSORS - gyro, accelerometer, proximity, brightness all are there. Nice they did not compromised here.
DESIGN - metal body, fits in one hand, light in weight curved edges makes it easier to hold, hybrid sim slot is fine.
SOUND - Great speakers on back, dolby atmos, really loud and quality music .
CONS
SOFTWARE - biggest problem of the phone is its software(although it is easily curable by a custom rom) and lenovo have made this phone sluggish with the updates it provided, but it does not provides software updates anymore
CALLING - calling experience could have been netter because the front microphone does not pick up sound so good, so we have to speak loud and clear.
PERFORMANCE - although a very good performer| stock android| does not hangs| ram is good, BUT it heats which it should not but it’s only because of the software its much better after a custom rom.
At the end I will say this is really a beautiful phone handy featureful a good camera with loud speaker and a good battery . I suggest you download a custom rom and it would provide a very great experience and nice performance.
GO FOR IT.