Understanding SMS Length and Its Charges
English SMS Length Defined: When crafting an English SMS, you have a limit of 765 characters at your disposal. But here's the breakdown to be aware of: Each standard SMS is capped at 160 characters. Segmentation of Longer Messages: If your message exceeds 160 characters, it gets segmented into parts, each containing up to 153 characters. So, if you're doing the math: 1 part = 1 SMS (Up to 160 characters) 2 parts = 2 SMS (Up to 313 characters) 3 parts = 3 SMS (Up to 459 characters) ... 5 parts = 5 SMS (Up to 765 characters: 5 parts * 153 characters/part). User Experience vs. Billing: Most modern mobile devices will seamlessly stitch these parts together, presenting the recipient with one continuous, elongated message for easy reading. However, on the billing side, each of those segments is considered and charged as a separate SMS by the network providers. Takeaway: While longer messages offer the advantage of conveying more information, it's essential to be aware of the character thresholds to manage costs effectively.
Understanding Unicode SMS Length
Defining Unicode SMS Length: For messages encoded in Unicode, the character limit for a single SMS is set at 70 characters. Unicode is used to represent a wider range of characters, including those from languages like Arabic, Chinese, and other non-Latin scripts, which often require more bytes for representation. Segmentation for Extended Messages: When a Unicode SMS exceeds this 70-character cap, the message undergoes segmentation. For extended messages that utilize Unicode encoding, each segment will be limited to 67 characters. This is because, out of the 70 characters, 3 are reserved for segmentation information. This information ensures the recipient's device can seamlessly concatenate the segments, presenting one continuous message. Key Point: It's essential to be mindful of the character limit when sending Unicode messages. Even though they allow for a rich set of characters, the segmented nature could mean higher costs due to multiple SMS charges for a single extended message.