Huawei B612s-51d GSM Unlocked 4G LTE CPE Mobile Sim Wi-Fi Router (Used)
- High-speed 4G LTE router with GSM unlocked.
- Supports up to thirty-two devices simultaneously connected.
- Dual external antenna ports enhance signal strength.
- Compatible with all Pakistani cellular network bands.
- Built-in VoIP phone port with RJ11 connectivity.
- Huawei HiLink App enables remote router management.
- Four LAN ports for flexible wired internet connections.
- Perfect router choice for home or small office.
₨ 8,500 ₨ 20,000
Best Price on Huawei B612s-51d GSM Unlocked 4G LTE CPE Mobile Sim Wi-Fi Router In Pakistan
The Huawei B612s-51d is a 4G LTE Category 6 CPE sim router, designed for fast, stable, and high-performance wireless internet. With support for up to 32 connected devices, this router is ideal for home, office, and even remote usage.
It offers unlocked GSM compatibility, meaning it supports all major cellular networks in Pakistan, including Jazz, Zong, Telenor, and Ufone.
✅ Key Features of Huawei B612s-51d
Feature | Details |
---|---|
Model | Huawei B612s-51d |
Network Support | 4G LTE / 3G / 2G |
Max Download Speed | Up to 300 Mbps (LTE FDD) |
Wi-Fi Standard | 802.11 b/g/n (up to 300 Mbps) |
Device Connections | Up to 32 users simultaneously |
External Antenna Support | Yes (2x SMA Ports) |
SIM Type | Micro SIM |
VoIP / VoLTE Support | Yes (Customizable via RJ11 Port) |
LAN Ports | 4 (3 LAN + 1 LAN/WAN) |
Phone Port | 1 x RJ11 |
IPv4/IPv6 Support | Dual Stack |
Mobile App | Huawei HiLink App Support |
Security Features | NAT, DHCP, DNS Relay, Firewall, WPS 2.0 |
Power Supply | DC 12V / 1A |
Weight | Approx. 430g |
Frequency Band Support: B612s-51d vs. B612s-25d
Huawei released two versions of the B612 model: B612s-51d and B612s-25d. Here’s how they differ in terms of band support:
Band Type | B612s-51d | B612s-25d |
---|---|---|
LTE Bands | B2 / B4 / B5 / B7 / B41 (2545–2655 MHz) | B1 / B3 / B7 / B8 / B20 / B38 / B40 / B41 / B42 / B43 |
3G Bands | B1 / B2 / B5 | B1 / B8 |
2G Bands | B2 / B3 / B5 / B8 | B2 / B3 / B5 / B8 |
4×4 MIMO | Not specified | Supported on select bands (B3/B7/B20/B38/B40/etc.) |
Note: For users in Pakistan, where LTE bands B3, B5, and B8 are commonly used, the B612s-51d provides solid coverage and is often the preferred model due to better support for local carriers.
Performance and Speed Benchmarks
With LTE Category 6 capabilities, the Huawei B612s-51d offers:
Network Type | Download Speed | Upload Speed |
---|---|---|
LTE FDD | Up to 300 Mbps | Up to 50 Mbps |
LTE TDD | Up to 210 Mbps | Up to 10 Mbps |
DC-HSPA+ | Up to 42 Mbps | Up to 5.76 Mbps |
HSPA+ (MIMO) | Up to 28 Mbps | Up to 5.76 Mbps |
EDGE/GPRS | 296 / 85.6 kbps | 236.8 / 85.6 kbps |
This performance is sufficient for HD video streaming, online gaming, Zoom meetings, and remote work — even with multiple users.
Ports and Connectivity
The Huawei B612s-51d comes with a wide range of ports for flexible connectivity:
Port Type | Quantity | Use Case |
---|---|---|
LAN Ports (RJ45) | 3 | Connect desktops, smart TVs, etc. |
LAN/WAN Port | 1 | Use as primary or backup WAN connection |
Phone Port (RJ11) | 1 | Connect landline or VoIP phone |
External Antenna | 2 (SMA) | Enhance signal reception |
Micro SIM Slot | 1 | Insert your SIM card |
Mobile App Control with Huawei HiLink
With support for the Huawei HiLink App, users can easily:
Monitor real-time signal strength
Change SSID and password
Set data limits
View connected devices
Reboot the router remotely
Manage SMS
This level of control makes it easy even for non-technical users to manage their internet connection.
️ Security and Stability
Security is a priority with the Huawei B612 sim router. Features include:
Built-in NAT Firewall
WPA/WPA2 encryption
MAC address filtering
DHCP server with IP reservation
DNS relay and port forwarding
WPS 2.0 for secure one-click connections
Whether you’re using it in a home or office environment, these features provide a safe and reliable browsing experience.
️ Environmental Specifications
Parameter | Range |
---|---|
Working Temp. | 0°C to 40°C |
Storage Temp. | -20°C to +70°C |
Humidity | 5% – 95% (Non-condensing) |
Power Consumption | Less than 12W |
Dimensions | 240mm × 155mm × 78mm |
These make it suitable for use in various environments — from homes in Karachi to remote locations in Balochistan.
Best Price in Pakistan
The Huawei B612s-51d is readily available across Pakistan, and prices vary depending on the seller, warranty, and accessories included. As of October 2025, here’s an approximate price range:
Vendor Type | Expected Price (PKR) |
---|---|
Authorized Dealers | Rs. 18,500 – Rs. 22,000 |
Online Retailers | Rs. 17,999 – Rs. 20,000 |
Used / Refurbished | Rs. 13,000 – Rs. 16,000 |
Tip: Always buy from a trusted seller and ensure the device is GSM Sim unlocked and comes with a warranty or return policy.
Conclusion: Why Huawei B612s-51d is the Best Choice
The Huawei B612s-51d offers superior performance, network compatibility, and user-friendly features at a highly competitive price. Its ability to support 32 devices, VoIP calling, and 4G LTE Cat 6 speeds make it a top-tier CPE router for Pakistani users.
Whether you’re streaming, gaming, working remotely, or running a small office, the B612s-51d delivers consistent performance you can rely on.
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