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Motorola MG8702 Cable Modem + Wi-Fi Router vs NETGEAR Nighthawk CAX30S

The NETGEAR Nighthawk CAX30S is the better pick for most people. It uses Wi-Fi 6 with 6 streams and a dual-core 1.5GHz processor, while the Motorola MG8702 runs older Wi-Fi 5 (AC3200) on a dual-band design. Both are DOCSIS 3.1 modems approved for Comcast Xfinity, Cox and Charter Spectrum, so the modem side is a wash. Owners of the Motorola rate it around 4.1 out of 5 and praise easy setup, but it lacks Wi-Fi 6 and its warranty terms are unclear. Step up to the Nighthawk if you have Wi-Fi 6 devices or a fast plan.

  • Choose the Motorola MG8702 if you want a simple, proven DOCSIS 3.1 combo for a mid-tier cable plan and your devices are all Wi-Fi 5 or older.
  • Choose the NETGEAR Nighthawk CAX30S if you have Wi-Fi 6 phones and laptops, a plan above a gigabit, or a busy household with many connected devices.

Prices

  • Motorola MG8702 Cable Modem + Wi-Fi Router: $299.00 at Walmart (checked today)
  • NETGEAR Nighthawk CAX30S: $289.99 at Best Buy (checked today)
  • Difference: the NETGEAR Nighthawk CAX30S is $9.01 cheaper than the Motorola MG8702 Cable Modem + Wi-Fi Router today
Motorola
Motorola MG8702 Cable Modem + Wi-Fi Router

Motorola MG8702 Cable Modem + Wi-Fi Router

4.1(56 ratings)
$299.00at WalmartChecked 10 h ago
See all prices and details
Visit Walmart
Pros
  • DOCSIS 3.1 modem and router in one box
  • Approved for Xfinity, Cox and Spectrum
  • Simple setup, owners report few issues
  • Four Gigabit LAN ports
Cons
  • Older Wi-Fi 5, no Wi-Fi 6 support
  • Dual-band only, no 6GHz
  • Warranty terms unclear on the listing
  • Slower for many-device households
NETGEAR
NETGEAR Nighthawk CAX30S AX2700

NETGEAR Nighthawk CAX30S

NETGEAR Nighthawk CAX30S AX2700

$289.99at Best BuyChecked 10 h ago
See all prices and details
Visit Best Buy

Store links may earn us a commission. Price via Klarna.

Pros
  • Wi-Fi 6 with 6 streams for newer devices
  • Dual-core 1.5GHz processor handles more traffic
  • Up to 10 Gbps download support on DOCSIS 3.1
  • Four Gigabit LAN ports
Cons
  • AX2700 is a modest Wi-Fi 6 tier, not top of the Nighthawk range
  • Fewer owner ratings on this listing
  • Setup app can be fussy for some users
  • Runs warm under heavy load

What separates them

Motorola MG8702 Cable Modem + Wi-Fi RouterNETGEAR Nighthawk CAX30S
Wi-Fi standardWi-Fi 5 (AC3200)Wi-Fi 6 (AX2700)
Wi-Fi streamsDual-band, 4 streams total6 streams (2.4GHz plus 5GHz)
5GHz throughputUp to 2.4 Gbps combined AC ratingUp to 1.8 Gbps on 5GHz alone
ProcessorNot publishedDual-core 1.5GHz
DOCSIS and carrier approvalDOCSIS 3.1, approved for Xfinity, Cox, SpectrumDOCSIS 3.1, works on major cable ISPs
Ethernet ports4 Gigabit LAN ports4 Gigabit LAN ports
Channel bonding32x8 downstream/upstream channels32 downstream, 8 upstream channels
Owner feedback4.1 out of 5 from 56 ratings, easy setup citedFewer ratings on this listing, Nighthawk line well reviewed

Price history

$300.61$289.99
Nov 13Nov 15
  • Motorola MG8702 Cable Modem + Wi-Fi Router: lowest $299.00 on Nov 15 at Amazon.
  • NETGEAR Nighthawk CAX30S: lowest $289.99 on Nov 15 at Best Buy.

Prices at every store

Motorola MG8702 Cable Modem + Wi-Fi Router

  • WalmartNew

    In stockSold by BiocloudReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.

    $299.00Free shippingChecked 10 h ago
    Visit Walmart
  • eBayPre-owned

    Availability unknownSold by waynestorage (94.9% positive, 1,400 ratings)Returns: Set by the eBay seller; the eBay Money Back Guarantee covers an item that doesn't arrive or isn't as described.

    $47.99Free shippingChecked 14 h ago
    Visit eBay
  • AmazonNew

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $299.00Free shippingChecked 14 h ago
    Visit Amazon

Also available at

  • WalmartCheck price at Walmart

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All 3 stores and price history →

NETGEAR Nighthawk CAX30S

  • Best BuyNew

    In stock

    $289.99Free shippingChecked 10 h ago
    Visit Best Buy
  • AdoramaNew

    In stock

    $379.99Free shippingChecked 10 h ago
    Visit Adorama
  • eBayNew

    Availability unknownSold by department75 (99.9% positive, 117,600 ratings)Returns: Set by the eBay seller; the eBay Money Back Guarantee covers an item that doesn't arrive or isn't as described.

    $314.99Free shippingChecked 14 h ago
    Visit eBay
  • AmazonNew

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $349.97Free shippingChecked 14 h ago
    Visit Amazon

Store links may earn us a commission. Some prices via Klarna.

All 9 stores and price history →

Specs compared

SpecMotorola MG8702 Cable Modem + Wi-Fi RouterNETGEAR Nighthawk CAX30S
colorBlack—
BrandMotorola—
Wireless performanceAC3200—
Number of wireless frequency bandsDual-Band—
Wireless2.4 GHz—
AccessoriesAC Power Adapter—
Model nameMG8702—
Has written warrantyNo—
Total count1—
Has nrtl listing certificationN—
WiFi speed—up to 2.7 Gbps
WiFi standard—WiFi 6
Show all 22 specsShow fewer specs
SpecMotorola MG8702 Cable Modem + Wi-Fi RouterNETGEAR Nighthawk CAX30S
DOCSIS version—DOCSIS 3.1
Max download speed—up to 10 Gbps
Max upload speed—1 Gbps
WiFi streams—6-Stream
2.4GHz speed—900 Mbps
5GHz speed—1800 Mbps
Processor—dual-core 1.5GHz
Downstream channels—32
Upstream channels—8
LAN ports

What reviewers say

Motorola MG8702 Cable Modem + Wi-Fi Router

  • 4.1 / 556 ratings

Owners generally report easy activation and steady connections, and many are glad to drop the provider's rental modem. The recurring complaints are Wi-Fi coverage that falls short in larger homes and a unit that gets noticeably warm.

What people mention
  • SetupPraisedOwners say activation with their cable provider went smoothly and the device was online quickly.
  • Wi-Fi rangeCriticisedReviewers report coverage that drops off in larger homes or through several walls.
  • SpeedPraisedUsers on fast cable plans report wired speeds that match what they pay for.
  • HeatCriticisedSeveral owners note the unit gets warm and needs open space around it.

Questions and answers

Which is better for a house with lots of devices?
The Nighthawk CAX30S. Wi-Fi 6 and 6 streams handle many phones, laptops and smart-home gadgets better than the Motorola's Wi-Fi 5 dual-band design.
Do both work with Comcast Xfinity, Cox and Spectrum?
Yes. Both are DOCSIS 3.1 modems and the Motorola is explicitly approved for all three. The Nighthawk works on major cable ISPs, but check your provider's approved list before buying.
Is the Nighthawk worth stepping up to over the Motorola?
If you have Wi-Fi 6 devices or a plan near or above a gigabit, yes. If your devices are older and your plan is mid-tier, the Motorola covers it and owners rate it well.
Which lasts longer?
Neither has a clear edge on lifespan. Both are combo units that run warm, so give either airflow and expect a few years of service. The Nighthawk's stronger processor may hold up better under heavy use.
Can I use either as just a modem?
Yes. Both can run in bridge mode with your own router, which is useful if you later want better Wi-Fi than either built-in radio offers.
Which has better range?
The Nighthawk generally, thanks to Wi-Fi 6 and 6 streams. The Motorola is fine for a small to mid-size home, but large or multi-floor homes favor the Nighthawk.

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More comparisons

  • Motorola MG8702 Cable Modem + Wi-Fi Router vs ARRIS SURFboard G36
  • NETGEAR Nighthawk CAX30S AX2700 vs ARRIS SURFboard G36
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four 10/100/1000 LAN Gigabit Ethernet ports