Our Opinion

The Asus Zenfone 5Z (8GB RAM, 256GB) is a slightly better phone than the OnePlus 6 (6GB RAM, 64GB), and is also significantly better value for money. What should you buy? Go for the Asus Zenfone 5Z (8GB RAM, 256GB)!

Asus Zenfone 5Z (8GB RAM, 256GB)  OnePlus 6 (6GB RAM, 64GB) 
Asus Zenfone 5Z OnePlus 6
Buy Now Buy  not available currently
Excellence Score
79.5
75.1
Value for Money Score
86.8
70.0
Price ₹ 31,999 onwards ₹ 34,999 onwards
Launch Date (India) Jul, 2018 May, 2018
Expected Launch Date N/A N/A
Smartphone OS Android 8.0 OreoExpected update to 9.0 Pie Android 8.1 Oreo, Upgradeable to 9.0 PieExpected update to next Android version
Touchscreen Yes (Capacitive) Yes (Capacitive)
Screen Size 6.2 inches 6.28 inches
Screen Resolution 1080x2246 pixels (~ 402 pixels per inch) 1080x2280 pixels (~ 402 pixels per inch)
Tall Aspect Ratio / Minimal Bezels Yes Yes
Scratch Resistant Display Yes, Corning Gorilla Glass 3 Yes, Corning Gorilla Glass 5
Display Features Super IPS+, Bluelight filter, Smart Screen On Optic AMOLED, 2.5D Curved Glass, Reading Mode, Night Mode, Lift Up Display
Full Physical QWERTY Keypad
Processor 2.7 GHz 2.8 GHz
Processor Type Octa Core Octa Core
Processor Name Qualcomm Snapdragon 845Ranked #5 in Mobile Processor Benchmarks Qualcomm Snapdragon 845Ranked #5 in Mobile Processor Benchmarks
GPU Adreno 630 Adreno 630
RAM 8 GB 6 GB
3G Yes Yes
4G Yes Yes
VoLTE Yes Yes
WiFi Yes Yes
GPS Yes Yes
Bluetooth Yes Yes
Connecting Port USB-C USB-C
Primary Camera 12MP + 8MP 16MP + 20MP
Camera Auto-Focus Yes Yes
Camera Flash Yes Yes
HD Video Recording Yes (4K) Yes (4K)
Other Camera Features 12MP: F/1.8 Aperture; 24mm Focal Length; 1/2.55" Sensor Size; 1.4µm Pixel Size, 8MP: F/2.0 Aperture; 12mm Focal Length; 1/4" Sensor Size; 1.12µm Pixel Size, Phase Detection Autofocus (PDAF), Electronic Image Stabilisation (EIS) 16MP: F/1.7 Aperture; Sony IMX 519 Sensor; 1.22 µm Pixel Size; 1/2.6" Sensor Size; Optical Image Stabilisation (OIS); Electronic Image Stabilisation (EIS), 20MP: F/1.7 Aperture; Sony IMX 376K Sensor; 1.0µm Pixel Size; 1/2.8" Sensor Size; Phase Detection Autofocus (PDAF), Super Slow Motion (1080p @ 240fps; 720p @ 480fps), Time-Lapse, Portrait Mode, Pro Mode, Panorama, HDR, HQ, Dynamic Denoise, Clear Image, RAW Image
Secondary Camera 8.0MP 16.0MP
Secondary Camera Features F/2.0 Aperture, 24mm Focal Length, 1/4" Sensor Size, 1.12µm Pixel Size, Electronic Image Stabilisation (EIS), Full HD Video Rec. Screen Flash, F/2.0 Aperture, Sony IMX371 Sensor, 1.0µm Pixel Size, Electronic Image Stabilisation (EIS), Full HD Video Rec., Time-Lapse, Portrait Mode, HDR, Smile Capture, Face Beauty
Internal Memory 256 GB 64 GB
Expandable Memory Slot up to 2 TB
Contacts Storage Unlimited Unlimited
SMS Storage Unlimited Unlimited
Music Player Yes Yes
FM Radio Yes
Dual SIM GSM+GSM (Hybrid SIM slot) GSM+GSM
Thickness 7.7 mm 7.75 mm
Weight 155 gm 177 gm
Audio Output 3.5mm jack 3.5mm jack
Water Resistant Yes
Battery Capacity 3300 mAh 3300 mAh
Battery Standby N/A N/A
Battery Standby (3G) N/A N/A
Battery Talktime N/A N/A
Battery Talktime (3G) N/A N/A
Fast Charging Yes Yes, Dash Charge
Other Battery Parameters N/A N/A
Fingerprint sensor Yes Yes
Other Features NFC; Stereo Speakers; Noise Filtration; DTS Headphone X; Hi-Res Audio; Google Drive: 100GB free space (1 year) Gestures and on-screen navigation support; Alert Slider; DLNA; NFC; MIMO; Noise Filtration; Dirac HD Sound; Dirac Power Sound
2-minute Review [Positives]
  • Beautiful, elegant, glass & metal design, with a 'notch' screen - quite similar to the iPhone X - and arguably the most beautifully designed phone in this price bracket
  • The power button and the volume rocker on the right have just the right amount of tactile give, and also the mid-frame has a smooth matte finish that ups both the premium quotient as well as the in-hand feel - the ZenFone 5Z feels like an expensive phone that isn't expensive at all
  • Build quality is rock solid too - the phone has considerable heft but not unbearably so - you'll feel the phone in your hands but you won't find it taking the better of you - it's just the right proportion
  • It's very pocketable too - boasting of an impressive screen-to-body ratio of 90 per cent - the phone is almost border-less, barring a notch up-top and a chin portion at the bottom
  • The tall, modern, 19:9 display is absolutely gorgeous - it can get really bright and produces rich and vibrant colours that look pleasing to the eyes - it has great viewing angles as well - again, this is arguably the best display in this price bracket, even better than the OnePlus 6, especially in terms of colour accuracy
  • Asus's ZenUI is a huge improvement over its previous, bloated versions - it's now much lighter and smoother, and adds tons of useful AI frameworks to make the core Android experience much better - the cameras use AI for scene detection and better shots, the battery uses AI to optimize charging, the processor uses AI to boost specific apps/games, and the display uses AI to remain on when you are looking at it!
  • Asus also makes probably the best use of the 'bunny ears' on the sides of the notch of any Android phone so far - the implementation is well thought-out - the bunny ears in the case of the ZenFone 5Z are interactive - they don't bombard you with icons and notifications - instead, everything is neatly arranged and there's even a tap to view more option - tapping on either side of the notch takes you to a small sub-head that gives you an expanded view of all the incoming notifications, without having you to pull them down all the way through - it's these little details in the software that really add to the experience of using the Zenfone 5Z
  • The hardware on the Zenfone 5Z is as top-end as it gets - it is the cheapest phone in India right now with a Qualcomm Snapdragon 845 processor under the hood - in short, it will fly through anything you throw at it - and will be as fast as other flagships (OnePlus, Galaxy S9 etc)
  • Very good dual camera system at the rear - arguably the best at this price point, competing virtually head-to-head with the OnePlus 6, and and not too much behind the best of the best like the Pixel 2 - photos clicked with it in good lighting come out well, with lots of detail and colours which are mostly true to source - dynamic range is also spot-on - the ZenFone 5Z is also capable of taking some good shots in tricky and low light conditions - the phone also comes with an in-built night mode that ups the detail (even further) and leads to brighter photos at the cost of resolution (4-megapixel)
  • Thanks to the 4-axis OIS, shake is minimal (or altogether absent) in videos and the 4K clips shot with the phone also look fantastic - the phone further comes with a 3 mic system that results in fairly crisp audio recording as well
  • The secondary 8-megapixel wide-angle sensor on the rear performs its job really well too - it gives you both a pretty amazing portrait mode, and a wide-angle shot option
  • The phone's front 8MP shooter is decent too (though not exceptional like the rear camera setup) - it takes some good selfies in good light
  • The stereo speakers can get really loud, and the phone also supports High-Resolution audio via compatible wired and wireless headphones
  • Good battery life - the 3300mAh battery inside the ZenFone 5Z is similar to the OnePlus 6 - you will comfortably get a day of use
  • It even charges as fast as OnePlus' excellent Dash charger - you can top it off in some one hour fifteen minutes using the bundled 18W Qualcomm Quick Charger 3.0 charger
  • On the whole, the Asus ZenFone 5Z is the first (and only) phone in the market right now that should make OnePlus nervous, and will give some very serious competition to the excellent OnePlus 6 - it is arguably a bit better than the OnePlus 6 in a couple of areas (overall looks, speakers), and arguably a bit behind in a couple (software, water resistance), but overall, these 2 phones are pretty much neck-and-neck - which is saying something since the Zenfone 5z is significantly cheaper!
  • The best looking OnePlus phone to date - has a polished refined design, with a glass rear panel, and three distinct (and beautiful) color options (plus the Marvel Avengers edition)
  • Excellent build quality
  • The phone is comfortable to hold, thanks to the curved glass rear
  • Face unlock works great in most conditions, and unlocks the phone in a fraction of a second (except in low light or under very bright sunlight)
  • There is also of course the fingerprint sensor at the back, if you wish to use that instead, and it works great too
  • OnePlus's excellent alert slider is there too (it has now moved to the right side of the phone) - and is now more simplified toggling between 3 simple states - ring, vibrate and silent, with a pop-up that tells you instantly which mode you are switching to every time
  • Excellent display - catches on to the modern 'notch' trend, with a tall screen ratio - the AMOLED screen is vivid, with punchy colours and great viewing angles - videos looks great, and you can also set your own custom colour temperature if you prefer
  • OxygenOS continues to be a huge differentiator for OnePlus - it strikes a great balance between keeping the base UI identical to stock Android but still adding a number of useful additions - like shortcuts, a dark theme, a scrolling screenshot capture tool, and controls for giving the on-screen buttons additional functions, night and reading modes, a choice of system fonts, and configurable colours for the notification LED - all in all, its a great software experience, that ticks the right boxes
  • Another interesting add-on is an optional gesture scheme that lets you get rid of the Android navigation buttons altogether, and gives you a full gesture based navigation scheme like the iPhone X - thus giving you even more screen space to play with - the gestures do take some time to get a hang of, but once you do, they will become second nature
  • There's also a Gaming Mode that not only suppresses non-essential notifications, but can also limit background apps' Internet usage, which can make a difference in online games - you can even route calls directly to the loudspeaker so you don't have to stop playing
  • Top-notch, breathtaking performance, backed by the latest flagship processor from Snapdragon, the Snapdragon 845 - the SoC has eight Kryo 385 cores, integrated Adreno 630 graphics, improved security and image processing subsystems, a faster LTE modem, and even hardware dedicated to AI processing - all of this means the performance is top-bracket, matching (or beating) the Galaxy S9/Plus in benchmark scores
  • Good set of dual rear cameras, significantly improved from the OnePlus 5T - especially in terms of portrait mode photos, low light performance, and video recording (including a new super-slow motion mode)
  • The rear cameras now also come with OIS
  • Decent (though not great) front camera, pretty similar to the OnePlus 5T - a software bokeh mode for the front camera is also there
  • Decent loudspeaker (pretty loud) - although it tends to get blocked when you hold the phone in landscape mode
  • Good (but not exceptional) battery life - will comfortably last the day with moderate to heavy use
  • Fast charging support, still one of the best in the business - the Dash Charger takes the phone up from zero to just over 50 percent in half an hour, and gives you a full charge in around an hour and a half
  • On the whole, the OnePlus 6 is good-looking, well crafted, extremely powerful - it is also a solid upgrade to the OnePlus 5T in almost all the departments such as display, performance, design and camera - and ultimately the OnePlus 6’s bang for buck is still about the best you can get in the smartphone world
2-minute Review [Negatives]
  • The shutter speed on the camera could have been slightly better - it's decent but not the best - it can sometimes get in the way when you're looking to take a quick shot, or clicking a moving subject
  • Will also tend to pick up smudges very quickly
  • It's not the easiest to reach all corners of the newly enlarged screen - people who prefer more compact phones might have preferred a smaller-screen option for themselves
  • While OnePlus does claim that the phone has water-resistance, it's not IP rating certified, which likely means that the protection is quite basic
  • A little slippery because of the glass
  • At 177g, the phone is a bit on the the heavier side too
  • The rear and front cameras are good, but not really up to the high benchmarks set by the likes of the iPhone X, the Galaxy S9, or the Pixel 2 - this continues to be the only one significant area, where you will be making a compromise over the best flagship smartphones, when you buy a OnePlus device (of course admittedly for a much lower price)
Expert Reviews
  1. One of the most underappreciated phones around...an excellent all-round package
    gsmarena.com in-depth Read Review »
  2. A device you won’t regret buying
    phonearena.com in-depth Read Review »
  3. Asus has hit the ball right out of the park
    gadgets.ndtv.com in-depth Read Review »
  4. Exceptional value for money
    fonearena.com in-depth Read Review »
  5. Makes the OnePlus 6 look like an expensive flagship in comparison
    digit.in in-depth Read Review »
  6. The ‘flagship killer’ killer
    androidauthority.com in-depth Read Review »
  7. Will surely send jitters to premium market leaders
    ibtimes.co.in in-depth Read Review »
  8. A compelling alternative to the OnePlus 6
    androidcentral.com in-depth Read Review »
  9. What makes it stand out from the crowd is the AI-centric features
    themobileindian.com in-depth Read Review »
  10. digitaltrends.com in-depth Read Review »
  11. indianexpress.com in-depth Read Review »
  12. economictimes.indiatimes.com in-depth Read Review »
  13. hindustantimes.com in-depth Read Review »
  14. tomsguide.com in-depth Read Review »
  15. stuff.tv in-depth Read Review »
  16. firstpost.com in-depth Read Review »
  17. beebom.com in-depth Read Review »
  18. deccanchronicle.com in-depth Read Review »
  19. indiatoday.in in-depth Read Review »
  20. business-standard.com in-depth Read Review »
  21. techradar.com hands-on Read Review »
  22. bgr.in hands-on Read Review »
  23. alphr.com hands-on Read Review »
  24. expertreviews.co.uk hands-on Read Review »
  1. Unbeatable value
    gsmarena.com in-depth Read Review »
  2. OnePlus 6 is a beautiful phone that feels fast and that you will simply enjoy using day in and day out. And the reasonable price? Well, that’s the icing on the cake!
    phonearena.com in-depth Read Review »
  3. The OnePlus 6 is blazing fast, shoots amazing portrait mode photos, has a polished refined design and costs much less than other flagship phones
    cnet.com in-depth Read Review »
  4. The OnePlus 6 has hit most of the sweet spots: This is a uniquely gorgeous device with intuitive features, as well as solid battery life and a great camera
    engadget.com in-depth Read Review »
  5. There’s certainly a lot to like here — attractive design, great display, reliable battery life, fast performance, and great software — and there aren’t any silly, trend-chasing things
    theverge.com in-depth Read Review »
  6. This is a phone you can show off quite proudly
    gadgets.ndtv.com in-depth Read Review »
  7. A solid upgrade to the OnePlus 5T in almost all the departments such as display, performance, design and camera
    fonearena.com in-depth Read Review »
  8. The OnePlus 6 is built for speed from the ground up
    digit.in in-depth Read Review »
  9. Here’s a flagship device that gets it right on practically every count
    bgr.in in-depth Read Review »
  10. The OnePlus 6 exceeds expectations in so many ways we can now rightfully call it a flagship killer
    mashable.com in-depth Read Review »
  11. An absolute steal...It’s the best-value phone you can buy right now
    trustedreviews.com in-depth Read Review »
  12. OnePlus’ finest is still punching above its weight
    livemint.com in-depth Read Review »
  13. wired.com in-depth Read Review »
  14. techradar.com in-depth Read Review »
  15. forbes.com in-depth Read Review »
  16. androidauthority.com in-depth Read Review »
  17. digitaltrends.com in-depth Read Review »
  18. indianexpress.com in-depth Read Review »
  19. economictimes.indiatimes.com in-depth Read Review »
  20. hindustantimes.com in-depth Read Review »
  21. alphr.com in-depth Read Review »
  22. ibtimes.co.in in-depth Read Review »
  23. news18.com in-depth Read Review »
  24. expertreviews.co.uk in-depth Read Review »
  25. tomsguide.com in-depth Read Review »
  26. androidcentral.com in-depth Read Review »
  27. thequint.com in-depth Read Review »
  28. stuff.tv in-depth Read Review »
  29. zdnet.com in-depth Read Review »
  30. slashgear.com in-depth Read Review »
  31. firstpost.com in-depth Read Review »
  32. techadvisor.co.uk in-depth Read Review »
  33. pocket-lint.com in-depth Read Review »
  34. beebom.com in-depth Read Review »
  35. arstechnica.com in-depth Read Review »
  36. t3.com in-depth Read Review »
  37. indiatoday.in in-depth Read Review »
  38. androidpolice.com in-depth Read Review »
  39. gizmodo.com in-depth Read Review »
  40. recombu.com in-depth Read Review »
  41. pcmag.com in-depth Read Review »
  42. gadgetsnow.com in-depth Read Review »
  43. thenextweb.com hands-on Read Review »
  44. wired.co.uk hands-on Read Review »
User Reviews
  1. Flipkart4.5 309+ reviews »
  1. Amazon4.5 20,704+ reviews »
Official Website Official Website » Official Website »
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