ubm 4dThe key difference is that 4D Number shows you ALL the 4D results so that you can view them at a glance. It saves you plenty of time to check the 4D results at each site. At 4D Number,UBM is the first clinic in Sydney to partner with SneakPeek. We're now offering a clinical laboratory early gender DNA blood testing to determine you baby's gender from as early as 6