<s>
Nano	B-Device
Memory	I-Device
(	O
NM	O
)	O
is	O
a	O
proprietary	O
memory	B-Device
card	I-Device
format	O
developed	O
by	O
Huawei	O
in	O
2018	O
.	O
</s>
<s>
They	O
are	O
smaller	O
than	O
micro	B-Device
SD	I-Device
cards	I-Device
,	O
freeing	O
up	O
space	O
and	O
reducing	O
weight	O
in	O
smartphone	O
designs	O
.	O
</s>
<s>
They	O
are	O
more	O
expensive	O
than	O
SD	B-Device
cards	I-Device
.	O
</s>
