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💻 ASUS ExpertBook B9 OLED vs B5 OLED vs B3
AI-powered analysis across 22 matched specifications
ExpertBook B9 OLED (B9403)
ASUS
Overall Score
Best for UK executives needing an ultralight laptop with a premium OLED display
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ExpertBook B5 (B5404 / B5604)
ASUS
Overall Score
Best for managed IT fleets requiring upgradeable RAM, vPro security and optional LTE
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ExpertBook B3 (B3404)
ASUS
Overall Score
Best for basic office productivity on a tight budget, where initial cost is the primary concern
View Full DetailsPerformance Overview
Scores based on quantifiable specification values (1-10 scale)
ExpertBook B9 OLED (B9403)
ExpertBook B5 (B5404 / B5604)
ExpertBook B3 (B3404)
Performance
ExpertBook B9 OLED (B9403)
7.0
ExpertBook B5 (B5404 / B5604)
8.0
ExpertBook B3 (B3404)
3.0
Display
ExpertBook B9 OLED (B9403)
10.0
ExpertBook B5 (B5404 / B5604)
8.0
ExpertBook B3 (B3404)
2.0
Battery & Thermals
ExpertBook B9 OLED (B9403)
8.0
ExpertBook B5 (B5404 / B5604)
6.0
ExpertBook B3 (B3404)
2.0
Manageability & Security
ExpertBook B9 OLED (B9403)
7.0
ExpertBook B5 (B5404 / B5604)
8.0
ExpertBook B3 (B3404)
1.0
Expandability & Repair
ExpertBook B9 OLED (B9403)
6.0
ExpertBook B5 (B5404 / B5604)
9.0
ExpertBook B3 (B3404)
4.0
Ecosystem & Software
ExpertBook B9 OLED (B9403)
8.0
ExpertBook B5 (B5404 / B5604)
8.0
ExpertBook B3 (B3404)
5.0
Value
ExpertBook B9 OLED (B9403)
9.0
ExpertBook B5 (B5404 / B5604)
6.0
ExpertBook B3 (B3404)
1.0
Detailed Specifications
| Specification | ExpertBook B9 OLED (B9403) ASUS | ExpertBook B5 (B5404 / B5604) ASUS | ExpertBook B3 (B3404) ASUS |
|---|---|---|---|
| Performance | |||
| Processor | Intel Core 7 150U (vPro Essentials) or Core 5 120U - Series 1 (Meteor Lake), 10 cores / 12 threads | Intel Core Ultra 7 165H/155H/155U or Core Ultra 5 135H/125H/125U (Series 1, vPro options) with AI Boost NPU | Intel Core Ultra 7 155U / Core Ultra 5 125U (AI Boost NPU), or 13th-gen Core i7-1355U / i5-1335U / i5-1340P |
| CPU cores | 10 cores / 12 threads | -- | -- |
| Graphics | Intel Graphics (integrated) | Intel Arc Graphics integrated; optional NVIDIA GeForce RTX (B5604) | Intel integrated; optional NVIDIA GeForce RTX 2050 (B3404CVF) |
| Discrete GPU | Integrated Intel Graphics only — no discrete GPU option | Optional NVIDIA GeForce RTX (B5604) | Optional NVIDIA GeForce RTX 2050 (B3404CVF) |
| Memory & storage | |||
| Maximum memory | ✓Up to 64 GB LPDDR5X (soldered, on-board) | DDR5 SO-DIMM, 2 slots, up to 32 GB (user-upgradeable) | DDR5 SO-DIMM, 2 slots, up to 32 GB (user-upgradeable) |
| Memory type | LPDDR5X (soldered, on-board) | DDR5 SO-DIMM, 2 slots (user-upgradeable) | DDR5 SO-DIMM, 2 slots (user-upgradeable) |
| Maximum storage | Up to 2 TB M.2 2280 PCIe 4.0 x4 NVMe SSD | Up to 2 TB M.2 2280 PCIe 4.0 NVMe SSD; TCG Opal 2.0 SED option; second drive on select SKUs | Up to 1 TB M.2 2280 PCIe 4.0 NVMe SSD; TCG Opal 2.0 SED option; second M.2 2230 slot on select SKUs |
| Display | |||
| Display size | 14.0" | 14" or 16" (B5404 / B5604) | 14.0" |
| Resolution | 2880 x 1800 | 2560 x 1600 | 1920 x 1200 |
| Brightness | 400 nits | ✓up to 500 nits | 300 nits |
| Panel | 14.0" 2.8K OLED (2880 x 1800) WQXGA+, 90 Hz, 400 nits, 100% DCI-P3, VESA DisplayHDR True Black 600, glossy | 14" or 16" WQXGA (2560 x 1600) IPS 16:10, up to 500 nits, 100% DCI-P3, anti-glare; WUXGA and touch options | 14.0" WUXGA (1920 x 1200) IPS 16:10, 300 nits, anti-glare; WQXGA (2560 x 1600) 500-nit touch option (CVF) |
| Touchscreen | -- | WUXGA and touch options | WQXGA (2560 x 1600) 500-nit touch option (CVF) |
| Connectivity | |||
| Thunderbolt / USB4 ports | 2x Thunderbolt 4 (USB4) | 2x Thunderbolt 4 (USB4) | Thunderbolt 4 (USB4) |
| Ports | 2x Thunderbolt 4 (USB4), 1x USB 3.2 Gen 2 Type-A, 1x HDMI 2.1, 1x micro-HDMI (to RJ45 LAN), 3.5 mm combo | 2x Thunderbolt 4 (USB4), 2x USB 3.2 Gen 2 Type-A, HDMI 2.1, RJ45 Gigabit LAN, smart-card reader, 3.5 mm combo | Thunderbolt 4 (USB4), 2x USB 3.2 Gen 2 Type-A, USB 3.2 Gen 2 Type-C (PD), HDMI 2.1, RJ45 Gigabit LAN, smart-card reader, 3.5 mm combo |
| Mobile broadband (4G/5G) option | -- | optional 4G LTE (selected territories) | -- |
| Physical | |||
| Weight (from) | ✓From 0.99 kg (2.18 lb) | From 1.29 kg (14" B5404); from 1.42 kg with discrete GPU | From 1.40 kg (3.09 lb); from 1.54 kg with discrete GPU |
| Dimensions | 311 x 215 x 15.7-16.9 mm | 14": 313.7 x 226.8 x 18.9-23.0 mm (16" B5604 larger footprint) | 313.7 x 226.8 x 19.9-23.9 mm |
| Security & management | |||
| Intel vPro | Intel vPro Essentials option (Core 7 150U) | Intel Core Ultra vPro options | -- |
| Copilot+ PC (40+ TOPS NPU) | No — Intel Core Series 1 (Meteor Lake); NPU below the 40+ TOPS Microsoft Copilot+ threshold | -- | -- |
| Battery | |||
| Battery capacity | 63 Wh, 3-cell Li-ion (65 W USB-C fast charge) | 63 Wh (50 Wh on some SKUs), 3-cell Li-ion; 65 W / 90 W USB-C charging | 50 Wh (63 Wh on CVF), 3-cell Li-ion; 65 W / 90 W USB-C charging |
| Support | |||
| Operating system | Windows 11 Pro (Windows 11 Home option) | Windows 11 Pro (Pro Education / Home options) | Windows 11 Pro (no-OS option on CVF) |
| Base warranty | 1-year commercial warranty; ASUS extended / on-site uplift available | 1-year commercial warranty; ASUS extended / on-site uplift available | 1-year commercial warranty; ASUS extended / on-site uplift available |
Performance
Processor
ExpertBook B9 OLED (B9403)Intel Core 7 150U (vPro Essentials) or Core 5 120U - Series 1 (Meteor Lake), 10 cores / 12 threads
ExpertBook B5 (B5404 / B5604)Intel Core Ultra 7 165H/155H/155U or Core Ultra 5 135H/125H/125U (Series 1, vPro options) with AI Boost NPU
ExpertBook B3 (B3404)Intel Core Ultra 7 155U / Core Ultra 5 125U (AI Boost NPU), or 13th-gen Core i7-1355U / i5-1335U / i5-1340P
CPU cores
ExpertBook B9 OLED (B9403)10 cores / 12 threads
ExpertBook B5 (B5404 / B5604)--
ExpertBook B3 (B3404)--
Graphics
ExpertBook B9 OLED (B9403)Intel Graphics (integrated)
ExpertBook B5 (B5404 / B5604)Intel Arc Graphics integrated; optional NVIDIA GeForce RTX (B5604)
ExpertBook B3 (B3404)Intel integrated; optional NVIDIA GeForce RTX 2050 (B3404CVF)
Discrete GPU
ExpertBook B9 OLED (B9403)Integrated Intel Graphics only — no discrete GPU option
ExpertBook B5 (B5404 / B5604)Optional NVIDIA GeForce RTX (B5604)
ExpertBook B3 (B3404)Optional NVIDIA GeForce RTX 2050 (B3404CVF)
Memory & storage
Maximum memory
ExpertBook B9 OLED (B9403)Up to 64 GB LPDDR5X (soldered, on-board)
ExpertBook B5 (B5404 / B5604)DDR5 SO-DIMM, 2 slots, up to 32 GB (user-upgradeable)
ExpertBook B3 (B3404)DDR5 SO-DIMM, 2 slots, up to 32 GB (user-upgradeable)
Memory type
ExpertBook B9 OLED (B9403)LPDDR5X (soldered, on-board)
ExpertBook B5 (B5404 / B5604)DDR5 SO-DIMM, 2 slots (user-upgradeable)
ExpertBook B3 (B3404)DDR5 SO-DIMM, 2 slots (user-upgradeable)
Maximum storage
ExpertBook B9 OLED (B9403)Up to 2 TB M.2 2280 PCIe 4.0 x4 NVMe SSD
ExpertBook B5 (B5404 / B5604)Up to 2 TB M.2 2280 PCIe 4.0 NVMe SSD; TCG Opal 2.0 SED option; second drive on select SKUs
ExpertBook B3 (B3404)Up to 1 TB M.2 2280 PCIe 4.0 NVMe SSD; TCG Opal 2.0 SED option; second M.2 2230 slot on select SKUs
Display
Display size
ExpertBook B9 OLED (B9403)14.0"
ExpertBook B5 (B5404 / B5604)14" or 16" (B5404 / B5604)
ExpertBook B3 (B3404)14.0"
Resolution
ExpertBook B9 OLED (B9403)2880 x 1800
ExpertBook B5 (B5404 / B5604)2560 x 1600
ExpertBook B3 (B3404)1920 x 1200
Brightness
ExpertBook B9 OLED (B9403)400 nits
ExpertBook B5 (B5404 / B5604)up to 500 nits
ExpertBook B3 (B3404)300 nits
Panel
ExpertBook B9 OLED (B9403)14.0" 2.8K OLED (2880 x 1800) WQXGA+, 90 Hz, 400 nits, 100% DCI-P3, VESA DisplayHDR True Black 600, glossy
ExpertBook B5 (B5404 / B5604)14" or 16" WQXGA (2560 x 1600) IPS 16:10, up to 500 nits, 100% DCI-P3, anti-glare; WUXGA and touch options
ExpertBook B3 (B3404)14.0" WUXGA (1920 x 1200) IPS 16:10, 300 nits, anti-glare; WQXGA (2560 x 1600) 500-nit touch option (CVF)
Touchscreen
ExpertBook B9 OLED (B9403)--
ExpertBook B5 (B5404 / B5604)WUXGA and touch options
ExpertBook B3 (B3404)WQXGA (2560 x 1600) 500-nit touch option (CVF)
Connectivity
Thunderbolt / USB4 ports
ExpertBook B9 OLED (B9403)2x Thunderbolt 4 (USB4)
ExpertBook B5 (B5404 / B5604)2x Thunderbolt 4 (USB4)
ExpertBook B3 (B3404)Thunderbolt 4 (USB4)
Ports
ExpertBook B9 OLED (B9403)2x Thunderbolt 4 (USB4), 1x USB 3.2 Gen 2 Type-A, 1x HDMI 2.1, 1x micro-HDMI (to RJ45 LAN), 3.5 mm combo
ExpertBook B5 (B5404 / B5604)2x Thunderbolt 4 (USB4), 2x USB 3.2 Gen 2 Type-A, HDMI 2.1, RJ45 Gigabit LAN, smart-card reader, 3.5 mm combo
ExpertBook B3 (B3404)Thunderbolt 4 (USB4), 2x USB 3.2 Gen 2 Type-A, USB 3.2 Gen 2 Type-C (PD), HDMI 2.1, RJ45 Gigabit LAN, smart-card reader, 3.5 mm combo
Mobile broadband (4G/5G) option
ExpertBook B9 OLED (B9403)--
ExpertBook B5 (B5404 / B5604)optional 4G LTE (selected territories)
ExpertBook B3 (B3404)--
Physical
Weight (from)
ExpertBook B9 OLED (B9403)From 0.99 kg (2.18 lb)
ExpertBook B5 (B5404 / B5604)From 1.29 kg (14" B5404); from 1.42 kg with discrete GPU
ExpertBook B3 (B3404)From 1.40 kg (3.09 lb); from 1.54 kg with discrete GPU
Dimensions
ExpertBook B9 OLED (B9403)311 x 215 x 15.7-16.9 mm
ExpertBook B5 (B5404 / B5604)14": 313.7 x 226.8 x 18.9-23.0 mm (16" B5604 larger footprint)
ExpertBook B3 (B3404)313.7 x 226.8 x 19.9-23.9 mm
Security & management
Intel vPro
ExpertBook B9 OLED (B9403)Intel vPro Essentials option (Core 7 150U)
ExpertBook B5 (B5404 / B5604)Intel Core Ultra vPro options
ExpertBook B3 (B3404)--
Copilot+ PC (40+ TOPS NPU)
ExpertBook B9 OLED (B9403)No — Intel Core Series 1 (Meteor Lake); NPU below the 40+ TOPS Microsoft Copilot+ threshold
ExpertBook B5 (B5404 / B5604)--
ExpertBook B3 (B3404)--
Battery
Battery capacity
ExpertBook B9 OLED (B9403)63 Wh, 3-cell Li-ion (65 W USB-C fast charge)
ExpertBook B5 (B5404 / B5604)63 Wh (50 Wh on some SKUs), 3-cell Li-ion; 65 W / 90 W USB-C charging
ExpertBook B3 (B3404)50 Wh (63 Wh on CVF), 3-cell Li-ion; 65 W / 90 W USB-C charging
Support
Operating system
ExpertBook B9 OLED (B9403)Windows 11 Pro (Windows 11 Home option)
ExpertBook B5 (B5404 / B5604)Windows 11 Pro (Pro Education / Home options)
ExpertBook B3 (B3404)Windows 11 Pro (no-OS option on CVF)
Base warranty
ExpertBook B9 OLED (B9403)1-year commercial warranty; ASUS extended / on-site uplift available
ExpertBook B5 (B5404 / B5604)1-year commercial warranty; ASUS extended / on-site uplift available
ExpertBook B3 (B3404)1-year commercial warranty; ASUS extended / on-site uplift available
★
Expert Analysis
Specs web-verified from manufacturer datasheets · Servnet-reviewed · Last reviewed 26 Jul 2026
The ASUS ExpertBook B9 OLED is the top choice for executives seeking a premium ultraportable with a stunning OLED display, while the ExpertBook B5 OLED offers superior manageability and expandability, making it ideal for managed fleets. The ExpertBook B3, though the cheapest, compromises significantly on features and performance. For mobile professionals, the B9 OLED’s 0.99 kg weight and 14-inch 2.8K OLED panel deliver exceptional image quality and portability, but its soldered memory limits future upgrades. The B5 OLED counters with user-upgradeable DDR5 RAM, optional NVIDIA RTX graphics, and Intel vPro manageability, plus optional 4G LTE, suiting IT departments that demand serviceability and remote management. Its 14-inch or 16-inch IPS display offers 500 nits brightness but lacks the OLED’s contrast. The B3 comes last, with a lower-resolution 1920x1200 screen and 300 nits standard brightness, and no vPro or LTE options, making it suitable only for basic tasks where budget is paramount. Organisations should weigh the B9’s class-leading mobility against the B5’s flexibility, while the B3 may be a false economy given its limited specs.
ExpertBook B9 OLED (B9403)
Best for UK executives needing an ultralight laptop with a premium OLED display
ExpertBook B5 (B5404 / B5604)
Best for managed IT fleets requiring upgradeable RAM, vPro security and optional LTE
ExpertBook B3 (B3404)
Best for basic office productivity on a tight budget, where initial cost is the primary concern
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ExpertBook B9 OLED (B9403)
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