Asus Zenfone 2 (ZE551ML) vs Samsung Galaxy S5
A spec-by-spec comparison of the Asus Zenfone 2 (ZE551ML) and the Samsung Galaxy S5, taken from their full specification sheets. Green marks the better value in each measured row.
Head to head
| Asus Zenfone 2 (ZE551ML) | Samsung Galaxy S5 |
|---|
| Price | $69 | $3,791 |
| Our rating | 7/10 | 7/10 |
| Battery | 3,000 mAh | 2,800 mAh |
| Wired charging | 18W | — |
| RAM (max) | 4 GB | — |
| Storage (max) | 128 GB | 128 GB |
| Screen size | 5.5 in | 5.1 in |
| Main camera | 13 MP | 16 MP |
| Weight (lower is lighter) | 170 g | 145 g |
| Released | Mar 2015 | Apr 2014 |
Summary: Asus Zenfone 2 (ZE551ML) is ahead on battery, screen size. Samsung Galaxy S5 is ahead on main camera, weight (lower is lighter).
★ Which should you buy? Specs are close to an even split here, so Asus Zenfone 2 (ZE551ML) is the better buy — the extra cost of the other one isn't matched by a clear spec advantage.
Reviewed by the infozme.com Editorial Team — see how we research & rate phones.
Display
| Asus Zenfone 2 (ZE551ML) | Samsung Galaxy S5 |
|---|
| Type | IPS LCD | Super AMOLED |
| Size | 5.5 inches, 83.4 cm2 (~70.8% screen-to-body ratio) | 5.1 inches |
| Resolution | 1080 x 1920 pixels, 16:9 ratio (~403 ppi density) | 1080 x 1920 pixels (Full HD) |
| Protection | Corning Gorilla Glass 3 | Corning Gorilla Glass |
Platform
| Asus Zenfone 2 (ZE551ML) | Samsung Galaxy S5 |
|---|
| OS | Android 5.0 (Lollipop), upgradable to 6.0 (Marshmallow) | Android 4.4.2 KitKat, upgradable to Android 6.0 Marshmallow |
| Chipset | Intel Atom Z3580 (2.3 GHz) or Intel Atom Z3560 (1.8 GHz) | Qualcomm Snapdragon 801 (LTE version) or Exynos 5 Octa 5422 (3G version) |
| CPU | Quad-core (2.3 GHz or 1.8 GHz) | Quad-core 2.5 GHz Krait 400 (Snapdragon 801) |
| GPU | PowerVR G6430 | Adreno 330 (Snapdragon 801) |
Memory
| Asus Zenfone 2 (ZE551ML) | Samsung Galaxy S5 |
|---|
| Card slot | microSDXC (dedicated slot), up to 64GB | microSDXC, up to 128GB |
| Internal | 16GB 2GB RAM, 32GB 2GB RAM, 32GB 4GB RAM, 64GB 4GB RAM, 128GB 4GB RAM | 16GB or 32GB |
| RAM | — | 2GB |
Main Camera
| Asus Zenfone 2 (ZE551ML) | Samsung Galaxy S5 |
|---|
| Single | 13 MP, f/2.0, autofocus, dual-LED (dual tone) flash | 16 MP, f/2.2, 31mm (standard), 1/2.6", 1.12µm, PDAF |
| Features | PixelMaster camera, Low Light mode, Backlight (Super HDR) mode, Super Resolution mode | LED flash, panorama, HDR |
| Video | 1080p@30fps | 2160p@30fps (4K), 1080p@60fps, 720p@120fps, HDR |
Selfie Camera
| Asus Zenfone 2 (ZE551ML) | Samsung Galaxy S5 |
|---|
| Single | 5 MP, f/2.0 | 2 MP, f/2.4, 22mm (wide) |
| Features | PixelMaster | — |
| Video | — | 1080p@30fps |
Battery
| Asus Zenfone 2 (ZE551ML) | Samsung Galaxy S5 |
|---|
| Type | Li-Po 3000 mAh, non-removable | Removable Li-Ion |
| Charging | 18W wired, 60% in 39 min (advertised) | 5W wired |
| Capacity | — | 2800 mAh |
Body
| Asus Zenfone 2 (ZE551ML) | Samsung Galaxy S5 |
|---|
| Dimensions | 152.5 x 77.2 x 10.9 mm (6.00 x 3.04 x 0.43 in) | 142 x 72.5 x 8.1 mm (5.59 x 2.85 x 0.31 in) |
| Weight | 170 g (6.00 oz) | 145 g (5.11 oz) |
| Build | Glass front (Gorilla Glass 3), plastic back, plastic frame | Plastic body, textured rear cover |
| SIM | Dual SIM (Micro-SIM, dual stand-by) | Micro-SIM |
| IP Rating | — | IP67 dust/water resistant (up to 1m for 30 min) |
Comms
| Asus Zenfone 2 (ZE551ML) | Samsung Galaxy S5 |
|---|
| WLAN | Wi-Fi 802.11 a/b/g/n/ac, Wi-Fi Direct, hotspot | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot |
| Bluetooth | 4.0, A2DP, EDR | 4.0, A2DP, EDR, LE |
| Positioning | GPS, GLONASS, BDS | — |
| NFC | Yes | Yes |
| Radio | FM radio | — |
| USB | microUSB 2.0, OTG | microUSB 3.0 (MHL 2 TV-out), OTG |
| GPS | — | Yes, with A-GPS, GLONASS |
| Infrared port | — | Yes |
Launch
| Asus Zenfone 2 (ZE551ML) | Samsung Galaxy S5 |
|---|
| Announced | January 2015 | February 24, 2014 |
| Status | Discontinued | — |
| Released | — | April 11, 2014 |
Frequently asked questions
Which has the better battery, Asus Zenfone 2 (ZE551ML) or Samsung Galaxy S5?
Asus Zenfone 2 (ZE551ML) — 3,000 mAh for the Asus Zenfone 2 (ZE551ML) versus 2,800 mAh for the Samsung Galaxy S5.
Which is lighter, Asus Zenfone 2 (ZE551ML) or Samsung Galaxy S5?
Samsung Galaxy S5 — 170 g for the Asus Zenfone 2 (ZE551ML) versus 145 g for the Samsung Galaxy S5.
Which is newer, Asus Zenfone 2 (ZE551ML) or Samsung Galaxy S5?
Asus Zenfone 2 (ZE551ML) — Mar 2015 for the Asus Zenfone 2 (ZE551ML) versus Apr 2014 for the Samsung Galaxy S5.
Is the Asus Zenfone 2 (ZE551ML) or the Samsung Galaxy S5 rated higher?
We rate the Asus Zenfone 2 (ZE551ML) 7/10 and the Samsung Galaxy S5 7/10.
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