B-series update: B1ls is now available
Published date: 01 April, 2019
We're excited to announce a new B-series VM size, B1ls, which has the smallest memory and lowest cost among Azure VM instances. This offering is in response to customers who were looking for entry-level offerings. B1ls has 512 MiB of memory and 1 vCPU, and it costs only $0.0052 (US East) per hour.
B1ls is best for small web servers, small databases, and development and test environments. It offers a cost-effective way to deploy workloads that don't need the full performance of the CPU continuously and burst in their performance.
B1ls is available only on Linux for the best customer experience. Windows is not supported because the minimum recommended memory for the Windows OS is larger than what B1ls offers.
Available configurations and regional availability
Temp storage (SSD) GiB
Base CPU perf of VM
Max CPU perf of VM
Max banked credits
Max data disks
Max cached and temp storage throughput: IOPS/MBps
Max uncached disk throughput: IOPS/MBps
Get more information about B1ls on the Burstable VM sizes page.