Best-Mobile-Network
Difference Between GSM and CDMA
Published on 06.07.2023
Cellular technologies used in mobile networks evolved from 1G to 4G and now 5G. During the 2G and 3G era, two prominent tracks, namely GSM and CDMA, were introduced to provide a single industry standard for development of mobile networks. However, to streamline the future progress of networks, a global 4G standard 4G LTE came into existence, and carriers eventually switched to LTE. Until LTE, both GSM and CDMA continued to progress separately and had some cultural differences. Let us understand what these tracks were and their differences.
CDMA vs GSM:
Refer to the below table to better understand the difference between GSM and CDMA
GSM | CDMA |
Global System for Mobiles | Code Division Multiple Access |
SIM specific: Stores subscriber information on SIM card | Handset Specific: Subscriber information programmed into the device |
FDMA and TDMA Technology | CDMA Technology |
Supports voice and data transmission at once | Cannot transmit voice and data simultaneously |
Slower Data transfer rates | Higher data transfer and faster internet speed compared to GSM |
GSM SIM required for GSM device | CDMA phone do not require a SIM card |
Better Roaming Capabilities | Limited Roaming Options |
No built-in encryption | Comes with built-in encryption |
Less secure compared to CDMA | Offers superior voice quality and security than GSM |
Although these technologies were fundamental in the evolution of cellular networks, it is the 4G LTE era now with 5G coming up fast! Get a new SIM from Vi and enjoy a world of benefits.
Benefits with a Vi SIM and Postpaid Plan:
- Unlimited national roaming calls & 3000 SMS/month
- Fixed bulk data or unlimited data
- Free Unlimited Night Data
- OTT subscriptions at no additional costs
- Access to 15+ OTTs & 400+ Live TV Channels with a Vi Movies & TV subscription
- eSports & games free on the Vi App
- Travel Benefits with Higher value packs
Get a Vi SIM with a Vi postpaid plan and avail some or all these benefits based on your pack value.
looking for postpaid plans?
Selected Plan
₹199
for 05
Connections
200GB
With Data rollover
Amazon Prime
Mobile Number Details
Amazon Prime
₹399/month
unlimited calls
50 GB data (200GB rollover)
3000 (SMS/monthover)
Vi Movies & TV (VIP Access)
Hungama Music in Vi app (Pro)
Zee5 Premium
Vi Games (5 gold credits/month)
Sony LIV
3 month subscription
Disney+ Hotstar
3 month subscription
Sony LIV
3 month subscription
Disney+ Hotstar
3 month subscription
Sony LIV
3 month subscription
Disney+ Hotstar
3 month subscription
Sony LIV
3 month subscription
view details
entertainment
Sony LIV
3 month subscription
Vi Movies & TV (VIP Access)
plan details
per month
connection
entertainment
- Entertainment
Amazon Prime
6-month Amazon Prime subscription at no extra cost
(for primary member only)
plan details
Entertainment 399
per month