ADATA vs Western Digital Hard Drives (HDD)

Side-by-side price per gigabyte comparison across 271 products.

As of June 2026, ADATA averages $0.0873/GB across 14 products while Western Digital averages $0.0862/GB across 257 products on BuyPerUnit. Western Digital offers 1% better value per gigabyte for hard drives (hdd).

ADATA

Avg $/GB$0.0873

Best $/GB$0.0433

Price Range$0.0433 – $0.1650

Products14

Cheapest Product

5TB AData HD710 Pro USB3.1 2.5-inch Portable Hard Drive (Black)

5TB · $216.71 · newegg

Western Digital

Better Value

Avg $/GB$0.0862

Best $/GB$0.0168

Price Range$0.0168 – $1.3500

Products257

Cheapest Product

WD Elements 16TB USB 3.0 Desktop External Hard Drive Black

16TB · $268.94 · newegg

Top Products Compared

Rank	Brand	Product	Capacity	$/GB	Price	Retailer
1	ADATA	5TB AData HD710 Pro USB3.1 2.5-inch Portable Hard Drive (Black)	5TB	$0.0433	$216.71	newegg
1	Western Digital	WD Elements 16TB USB 3.0 Desktop External Hard Drive Black	16TB	$0.0168	$268.94	newegg
2	ADATA	ADATA 4TB HD650 Portable Hard Drive USB 3.1 Model AHD650-4TU31-CBK Black	4TB	$0.0512	$204.99	newegg
2	Western Digital	WD Elements 10TB USB 3.0 Desktop Hard Drive Black	10TB	$0.0210	$209.51	newegg
3	ADATA	adata hd710m pro 2 tb usb 3.1 rugged waterproof/dustproof/shockproof external hard drive, camouflage (ahd710mp-2tu31-ccf)	2TB	$0.0570	$114.04	newegg
3	Western Digital	WD2003FYYS-18W0B0 - DELL WD2003FYYS-18W0B0 DELL 2TB 7.2K 3G LFF SATA HARD DRIVE	2TB	$0.0265	$52.95	newegg
4	ADATA	ADATA 2TB HD710 Pro USB3.1 2.5' Portable Blue Hard Drive Model AHD710P-2TU31-CBL	2TB	$0.0574	$114.79	newegg
4	Western Digital	WD Elements 20TB USB 3.0 Desktop External Hard Drive WDBWLG0200HBK-NESN Black	20TB	$0.0300	$599.99	newegg
5	ADATA	ADATA 2TB HD710 Pro Portable Hard Drive USB 3.1 Model AHD710P-2TU31-CBK Black	2TB	$0.0575	$115.00	newegg
5	Western Digital	WD - easystore 20TB External USB 3.0 Hard Drive - Black	20 TB	$0.0328	$654.99	bestbuy

Which Should You Buy?

Based on current pricing data, Western Digital offers better overall value for hard drives (hdd) at an average of $0.0862/GB compared to ADATA's $0.0873/GB — that's roughly 1% less per gigabyte.

Western Digital's best deal is the WD Elements 16TB USB 3.0 Desktop External Hard Drive Black (16TB) at $0.0168/GB, while ADATA's cheapest option is the 5TB AData HD710 Pro USB3.1 2.5-inch Portable Hard Drive (Black) (5TB) at $0.0433/GB.

However, price per GB isn't everything — consider factors like warranty, performance specs, and your specific capacity needs. Check individual product pages for detailed specifications.

Frequently Asked Questions

Is ADATA or Western Digital cheaper per GB for hard drives (hdd)?

As of June 2026, Western Digital averages $0.0862/GB compared to ADATA at $0.0873/GB. Western Digital is approximately 1% cheaper per gigabyte on average.

How many ADATA and Western Digital hard drives (hdd) does BuyPerUnit track?

BuyPerUnit currently tracks 14 ADATA products and 257 Western Digital products in the hard drives (hdd) category, all ranked by price per gigabyte.

What is the cheapest ADATA hard drives (hdd) per GB?

The cheapest ADATA option is the 5TB AData HD710 Pro USB3.1 2.5-inch Portable Hard Drive (Black) at $0.0433/GB ($216.71 for 5TB).

What is the cheapest Western Digital hard drives (hdd) per GB?

The cheapest Western Digital option is the WD Elements 16TB USB 3.0 Desktop External Hard Drive Black at $0.0168/GB ($268.94 for 16TB).

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