I think all tests will pick up a pregnancy sooner or later but the more expensive (clearblue, first response) will often show a positive sooner than the cheapies. And I think some people find the smiley face ones are a bit easier than trying to look for a line in the vv early days
I used Boots or Tesco cheapies for all 3 of my PGs and got faint lines at just 1 or 2 days late
The cheapies are actually more sensitive in a lot of cases than the more expensive ones. Certainly the poundland, amazon, ebay (access diagnostics tests for example) are MUCH more sensitive than clearblue. First Response, does not detect earlier than other tests either. Cheapies for example often detect 10miu of hcg, Clearblue detects 25miu, so cheapies are MUCH more sensitive.
You're often paying for packaging tbh.
I always tested at 8dop (a week before my period was due) with cheap tests.
But once your period is late, they're all much of a muchness. The only ones I'd advise against are the +/- ones.
I second the poundland tests, much better value for money and gave an earlier result than Clear Blue Digital, Ist Response earlier result than clear Blue Digital but it wasn't earlier than the poundland tests as far as I remember. The poundland ones do the job and you will save yourself a fortune. The only difference is that there is less packaging in my opinion! obviously the result was the same in the end whichever test - next time I will stick to only the poundland tests following from my research this time!
I've always bought the cheapest one I could find because I am atightwad of the opinion that the money could be better spent buying some of the many many items a newborn seems to need.
What does make a difference is when you do the test. If you do it with an early morning wee (ie one that's been brewing all night) it will have a higher concentration of hormones and will give you a stronger line.
Tesco's cheapest test (2 in one pack) showed very faint lines on the due date of my period. Clear blue digital one is also a very good one as you dont need to make out the line. It will simply tell you if you ar pregnant or not.
i found first response to be rubbish. I did 1 the day before expected AF and one the day AF was due. Both big fat negatives. Both of these were done with FMU. So that ws £8 down the gutter. Did a Sainsburies one the day AF was due in the middle of the afternoon. BFP. Branded one's are a con
I used internet cheapies bought off amazon (25 for £7 I think). They were great- gave me a positive at 8dpo (in the afternoon!) but it was incredibly faint, although I think I can blame that on my own impatience rather than the test.