Nordic Semiconductor, a BLE solution leading provider, has released different solutions to fulfill IOT various implements. However, Raytac acknowledged there are still a lots of developers are still confused about the difference among nRF51822, nRF52832, nRF52810.
Raytac would like to contribute the comparison chart in below in order to provide a speedy understanding in between solutions.
nRF51 VS nRF52

Among these solutions, Raytac also released several kinds of module solutions to help developers selecting the “Right” module which can meet their spec, working range, pricing, and form factors requirements for IOT application.
Raytac module line Specification Sheet can be download in below link

Raytac BLE Module Line Summary(Please Click Me)

Nordic nRF51822 Solution
Raytac Module Line: MDBT40 & MDBT40-P
Bluetooth Specification:BT 4.0 & BT 4.1
Part No.:
1. MDBT40-256V3 (MDBT40, Chip Antenna, 16K RAM / 256K Flash Memory)
2. MDBT40-P256V3 (MDBT40-P, PCB Antenna, 16K RAM / 256K Flash Memory)
3. MDBT40-256RV3 (MDBT40, Chip Antenna, 32K RAM / 256K Flash Memory)
4. MDBT40-P256RV3 (MDBT40-P, PCB Antenna, 32K RAM  / 256K Flash Memory)


Nordic nRF52832 Solution
Raytac Module Line: MDBT42Q & MDBT42 & MDBT42V
Bluetooth Specification:BT 5.0 & BT 4.2
Part No.:
1. MDBT42Q-512K (MDBT42Q, Chip Antenna, 64K RAM / 512K Flash Memory)
2. MDBT42Q-P512K (MDBT42Q-P, PCB Antenna, 64K RAM / 512K Flash Memory)
3. MDBT42-512K  (MDBT42, Chip Antenna, 64K RAM / 512K Flash Memory)
4. MDBT42-P512K (MDBT42-P, PCB Antenna, 64K RAM / 512K Flash Memory)
5. MDBT42V-512K (MDBT42V, Chip Antenna, 64K RAM / 512K Flash Memory)
6. MDBT42V-P512K (MDBT42V-P, PCB Antenna, 64K RAM / 512K Flash Memory)
Nordic nRF52810 Solution
Raytac Module Line: MDBT42Q
Bluetooth Specification:BT 5.0 & BT 4.2
Part No.:
1. MDBT42Q-192K (MDBT42Q, Chip Antenna, 24K RAM / 192K Flash Memory)
2. MDBT42Q-P192K (MDBT42Q-P, PCB Antenna, 24K RAM / 192K Flash Memory)


Raytac believed the comparison chart provided as above may help to resolve the most confusion when selecting the solution.
However, if there is still any further query, Raytac welcome all developers coming up to us directly for more information.
Nordic nRF52832 MDBT42V-P
Raytac Nordic Module Line
Raytac Corporation
A BT4.1 & BT4.2 & BT5 module maker based on Nordic nRF51 & nRF52 solution 
(nRF51822 & nRF51422 & nRF52832 & nR52810 & nRF52840)            Tel: +886.2.3234.0208

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