Infinix XBOOK B15 Series BL51A5 Laptop vs Lenovo ThinkBook 16 21MWA0AUIN Laptop
Here you can compare Infinix XBOOK B15 Series BL51A5 Laptop… and Lenovo ThinkBook 16 21MWA0AUIN Laptop …. Comparing Infinix XBOOK B15 Series BL51A5 Laptop… vs Lenovo ThinkBook 16 21MWA0AUIN Laptop … on Smartprix enables you to check their respective specs scores and unique features. It would potentially help you understand how Infinix XBOOK B15 Series BL51A5 Laptop… stands against Lenovo ThinkBook 16 21MWA0AUIN Laptop … and which one should you buy The current lowest price found for Infinix XBOOK B15 Series BL51A5 Laptop… is ₹35,499 and for Lenovo ThinkBook 16 21MWA0AUIN Laptop … is ₹48,990. The details of both of these products were last updated on Dec 03, 2025.
| Specification | Infinix XBOOK B15 Series BL51A5 Laptop… | Lenovo ThinkBook 16 21MWA0AUIN Laptop … |
|---|---|---|
| Display | 15.6 inches | 16 inches |
| CPU | 5th Gen AMD Ryzen 7 5825U | 7th Gen AMD Ryzen 7 7735HS |
| GPU | AMD Radeon AMD | AMD Radeon Graphics |
| RAM | 16 GB DDR4 | 16 GB DDR5 |
| HDD | ||
| Price | ₹35,499 | ₹48,990 |
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Overview
| Specs Score | 64 / 100 | 66 / 100 Better Specs |
| CPU Clock Speed | 2 GHz | 3.2 GHz Faster Clock Speed |
| Display Resolution | 1920 x 1080 pixels | 1920 x 1200 pixels Better Resolution |
| USB Ports | 2 x USB 3.0, 2 x USB Type-C More USB Ports | 2 x USB Type-C |
| Weight | 1.59 kg Lighter | 1.7 kg |
| Unique Features | Lock Port No | No Fingerprint Sensor |
General
| Series | B15 Series | ThinkBook 16 |
| Model | BL51A5, XBOOK B15 | 21MWA0AUIN |
| Utility | Everyday Use, Performance | Everyday Use |
| Device Type | Ultrabook | Ultrabook |
| OS | Windows 11 Home (64-bit) | Windows 11 Home (64-bit) |
| Dimensions | 352.8 x 226.7 x 17.65 mm | 356 x 253.5 x 17.5 mm |
| Weight | 1.59 kg | 1.7 kg |
| Warranty | Domestic Onsite Warranty On Laptop And 6 Months On Adapter | 1 year Warranty |
Display
| Type | IPS | IPS |
| Touch | No | No |
| Size | 15.6 inches | 16 inches |
| Resolution | 1920 x 1080 pixels | 1920 x 1200 pixels |
| PPI | ~ 141 PPI | ~ 142 PPI |
| Refresh Rate | 60 Hz | |
| Aspect Ratio | 16:9 | 16:10 |
| Anti Glare Screen | Yes | Yes |
| Features | 250nits peak brightness, COLOR GAMUT 45% NTSC | 300 nits, 45% NTSC |
Connectivity
| Ethernet | Yes | 100/1000M (RJ-45) |
| WiFi | IEEE 802.11 a/b/g/n/ac | Wi-Fi 6E |
| Bluetooth | v5 | Yes |
| USB Ports | 2 x USB Type-C, 2 x USB 3.0 | 2 x USB Type-C, 2 x USB Type-A |
| USB Port Details | 1 x USB 3.2 Gen 1 Type-A, 1 x USB 3.2 Gen 1 Type-A (Always ON), 1 x USB 3.2 Gen 2 Type-C (USB PD 3.0 and DisplayPort 1.4), 1 x USB 4 Type-C (USB PD 3.0 and DisplayPort 1.4) | |
| HDMI | 1 x HDMI 1.4 Port | 1 x HDMI v2.1 Port |
| Micro SD Card Reader | Yes | Yes |
| Fingerprint Sensor | Yes | |
| Microphone In | Yes | |
| Headphone Jack | Yes | |
| Security Lock Port | Yes | |
| Other Ports | 1 x Headphone / microphone Combo Jack |
Input
| Camera | Yes, 2 MP | 720p HD Camera |
| Keyboard | 2 Level Brightness Adjustment, Yes | |
| Keyboard Backlit | Yes | Yes |
| Touchpad | Yes | Yes |
| Inbuilt Microphone | Dual Mic | Dual Array Digital Microphones |
| Speakers | DTS Audio Processing | 2 x 2W |
| Sound | DTS Audio Processing | |
| Optical Drive | No | No |
Processor
| Processor | 5th Gen AMD Ryzen 7 5825U | 7th Gen AMD Ryzen 7 7735HS |
| Speed | 8 x 2 GHz (Turbo Speed upto 4.5 GHz) Cores | 8 x 3.2 GHz (Turbo Speed upto 4.75 GHz) Cores |
| Cores | Octa Core, 16 Threads | Octa Core, 16 Threads |
| Cache | 16 MB | 16 MB |
| Brand | AMD | AMD |
| Series | Ryzen 7 | Ryzen 7 |
| Model | 5825U | 7735HS |
| Generation | 5th Gen | 7th Gen |
| Process Node | TSMC 6nm FinFET |
Graphics
| GPU | AMD Radeon AMD | AMD Radeon Graphics |
| Brand | AMD | AMD |
Memory
| RAM | 16 GB DDR4 | 16 GB DDR5 |
| RAM Bus Speed | 3200 MHz | 4800 MHz |
| RAM Slots | 2 | |
| Solid State Drive | 512 GB SSD | 512 GB SSD |
| SSD Interface | NVMe | NVMe PCIe Gen4 |
Battery
| Battery | 50 Wh, 3 Cell Battery | 45 Wh Battery |
| Adapter Type | 65W | 65W USB-C Power Adapter |
| Battery Backup | Upto 9 hours |
Extra
| Included Software | Infinix PC Connection | |
| Sales Package | Laptop, Power Adaptor, User Guide, Warranty Documents |
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