The initiative will require telecoms operators and equipment makers to invest a total of USD 5 billion as part of a plan also encompassing new mobile antennas and fibre networks, he said.
Macri said the 4G programme, which will run until 30 October, sets a unit price of ARS 2,200 for handsets, which will be available with interest-free credit and is aimed at helping the country make up lost ground following a decade of under-investment.
There are currently 7.7 million 4G handsets in Argentina, compared to 8 million 2G devices and 8 million near-obsolete 3G phones and Macri is aiming for sales of 16 million 4G units over the coming year.
The subsidy programme concerns the following models: Huawei Y3 II, LG Leon K120 K4, Samsung J1 ACE, BGH Joy A20, Microsoft Lumia 640, Noblex N 453 and the Hyundai Ultra Dream.
Public partners in the programme will include the communications and production ministries and telecoms regulator Enacom, which he said was making important progress in freeing up the 700 MHz band for mobile-phone use.
Macri's presentation followed the announcement of two decrees, one calling for improved telecoms services in rural areas and another for better mobile services.